98 service manual volume 3 of 3 mechanical

SERVICE MANUAL

Camaro [!J Firebird

VOLUME 3 OF 3 GMP /98-F-3F

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1998 Chevrolet Camaro and Pontiac Firebird

Service Manual Volume 3

This manual provides information on the diagnosis, the service procedures, the adjustmonlh. and the specifications for the 1998 Chevrolet Camara and Pontiac Firebird. This is the t1oco1111 edition of the 1998 Chevrolet Camara and Pontiac Firebird Service Manual. This manual contains new and updated information that will help you diagnose and service vehicles. If you are in the possession of the early edition of this manual GMP/98-F Volumes 1, 2, and 3 pleaso DISCARD it because the information is outdated.

Information on transmission unit repair (overhaul) can be found in the 1998 Transmission/Transaxle/Transfer Case Unit Repair Manual (TURM), GMPT/98-TURM, available separately. The TURM manual contains information on automatic and manual transmissions, including the fluid flow and circuit description information.

The technicians who understand the material in this manual and in the appropriate Dealer Service Bulletins better serve the vehicle owners.

When this manual refers to a brand name, a part number, or a specific tool, you may use an equivalent product in place of the recommended item. All information, illustrations, and specifications in this manual are based on the latest product information available at the time of publication approval. General Motors reserves the right to make changes at any time without notice.

) TABLE OF CONTENTS

Volume 1 Volume 2 Preface ................................................................ 1 Preface ................................................................ 1

Cautions and Notices ......................................... 3 Cautions and Notices ......................................... 3 General Information ....................................... 0-1 Steering ............................................................ 2-1

General Information ......................................... 0-3 Power Steering System ................................... 2-3 Maintenance and Lubrication ......................... 0-33 Steering Wheel and Column - Tilt ................. 2-51 Vibration Diagnosis and Correction ................ 0-45 Suspension ...................................................... 3-1

HVAC ................................................................ 1-1 Suspension General Diagnosis ........................ 3-3 HVAC System - Manual .................................. 1-3 Wheel Alignment ............................................. 3-7

Body and Accessories .................................. 8-1 Lighting Systems ........................................... 8-15 Wipers/Washer Systems .............................. 8-161

Front Suspension .......................................... 3-12 Rear Suspension ........................................... 3-43 Tires and Wheels .......................................... 3-58

Entertainment .............................................. 8-195 Driveline/Axle .................................................. 4-1 Wiring Systems ............................................ 8-282 Propeller Shaft ................................................ 4-3 Body Control System .. . .. . .. . .. .. .. . . . . . . . . . .. . .. . .. .. . 8-425 Rear Drive Axle ............................................ 4-23 Instrument Panel, Gauges and Console ....... 8-467 Keyless Entry .............................................. 8-545 Horns .......................................................... 8-560 Theft Deterrent ............................................ 8-569 Cruise Control ............................................. 8-601 Retained Accessory Power .......................... 8-640 Exterior Trim ............................................... 8-647

Brakes .............................................................. 5-1 Hydraulic Brakes ............................................. 5-5 Disc Brakes . . . . . . . . . .. . . . . . .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-68 Park Brake .................................................... 5-92 Antilock Brake System ................................ 5-108

INDEX ........................................................ INDEX-1 Waterleaks .................................................. 8-658 Air/Wind Noise ............................................ 8-665 Volume 3 Squeaks and Rattles ................................... 8-667 Stationary Windows ..................................... 8-683 Bumpers ..................................................... 8-712

Preface ................................................................ 1 Cautions and Notices ......................................... 3

Body Front End ........................................... 8-734 Engine .............................................................. 6-1 Doors .......................................................... 8-771 Engine Mechanical - 3.8L .............................. 6-13 Roof ............................................................ 8-825 Engine Mechanical - 5.7L ............................ 6-229 Seats .. . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .. . . . . . 8-896 Engine Cooling ............................................ 6-580 Interior Trim ................................................ 8-939 Engine Electrical ......................................... 6-665 Body Rear End ........................................... 8-955 Engine Controls - 3.8L ................................ 6-725 Plastic Panel Information and Repair ........... 8-987 Engine Controls - 5. 7L .............................. 6-124 7 Paint/Coatings ........................................... 8-1014 Engine Exhaust ......................................... 6-1900 Frame and Underbody ............................... 8-1022 TransmissionfTransaxle ................................ 7-1 Collision Repair ......................................... 8-1080 Manual Transmission - M49 ............................ 7-5

Restraints ......................................................... 9-1 Manual Transmission - MM6 ......................... 7-28 Seat Belts .. . . . . . . . . . . . . . . . . . . .. . . . .. . . . . . .. . . . . . . . .. .. . . . . . . . . . . 9-3 Automatic Transmission - 4L60-E .................. 7-56 SIR ............................................................... 9-20 Clutch . . .. . . . . . . . .. .. . . . . . .. .. . . . . . .. . . . . . . . . . . . . . . . . . .. . . . . . . . 7-359

INDEX ........................................................ INDEX-1 INDEX ........................................................ INDEX-1

Preface Table of Contents - 1

Cautions and Notices

Cautions and Notices ......................................... 3 SIR lnflator Module Disposal Caution ................ 5 Definition of Caution, Notice, and Important ...... 3 SIR lnflator Module Handling and Storage ABS Handling Caution ...................................... 3 Caution ......................................................... 5 Battery Disconnect Caution ............................... 3 SIR Special Tool Caution .................................. 5 Brake Dust Caution .......................................... 3 Vehicle Lifting Caution ...................................... 5 Brake Fluid Caution ......................................... .4 Window Removal Caution ................................. 5 Clutch Dust Caution ......................................... .4 Window Retention Caution ................................ 5 Electric Coolant Fan Caution ........................... .4 Work Stall Test Caution .................................... 6 Fuel and EVAP Pipe Caution ........................... .4 Defective Scan Tool Notice ............................... 6

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Fuel Gauge Leak Caution ................................ .4 Fuel Pipe Fitting Caution ................................. .4 Fuel Storage Caution ....................................... .4 Gasoline/Gasoline Vapors Caution ................... .4 Lower 0-Ring Removal Caution ....................... .4 Moving Parts and Hot Surfaces Caution ........... 4 Relieving Fuel Pressure Caution ...................... .4 Road Test Caution .......................................... .4 Safety Glasses and Compressed Air Caution .... 5 Safety Goggles and Fuel Caution ..................... 5 Seat Belt Replacement Caution ........................ 5 SIR Caution ...................................................... 5

Fastener Notice ................................................ 6 Fuel Pressure Notice ........................................ 6 Handling ESD Sensitive Parts Notice ................ 6 Handling IAC Valve Notice ............................... ? Ignition OFF When Disconnecting Battery

Notice ........................................................... ? Latched OTC B1018, B1024 Notice

(SDM-RSD) ................................................... 7 Nylon Fuel Lines Notice .................................... ? OBDll System Description Notice ...................... ? PCM and ESD Notice ....................................... ?

SIR Handling Caution ....................................... 5 Servicing and Replacing Seat Belts Notice ....... 7

2 - Table of Contents Preface

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Preface

Cautions and Notices Definition of Caution, Notice, and Important The diagnosis and repair procedures in the GM Service Manual contain both general and specific Cautions, Notices, and lmportants. GM is dedicated to the presentation of service information that helps the technician to diagnose and repair the systems necessary for the proper operation of the vehicle, however, certain procedures may present a hazard to the technician if they are not followed in the recommended manner. Cautions, Notices, and lmportants are elements designed to prevent these hazards, however, not all hazards can be foreseen. This information is placed at strategic locations within the service manual. This information is designed to prevent the following from occurring:

Serious bodily injury to the technician Damage to the vehicle Unnecessary vehicle repairs Unnecessary component replacement Improper repair or replacement of vehicle

components. Any caution or notice that appears in general information is referenced from the individual service categories.

CAUTION Defined When encountering a CAUTION, you will be asked to take a necessary action or not to take a prohibited action. If a CAUTION is not heeded, the following consequences may occur:

Serious bodily injury to the technician Serious bodily injury to other technicians in the

workplace area Serious bodily injury to the driver and/or

passenger(s) of the vehicle, if the vehicle has been improperly repaired

NOTICE Defined Notices call special attention to a necessary action or to a prohibited action. If a NOTICE is not heeded, the following consequences may occur:

Damage to the vehicle Unnecessary vehicle repairs Unnecessary component replacement Improper operation or performance of the system

or component under repair Damage to any systems or components which are

dependent upon the proper operation of the system or component under repair

Improper operation or performance of any systems or components which are dependent upon the proper operation or performance of the system or component under repair

Damage to fasteners, basic tools, or special tools The leakage of coolant, lubricant, or other vital

fluids

Cautions and Notices - 3

IMPORTANT Defined IMPORTANT statements emphasize a necessary characteristic of a diagnostic or repair procedure. IMPORTANT statements are designed to do the following:

Clarify a procedure Present additional information for accomplishing a

procedure Give insight into the reason or reasons for

performing a procedure in the manner recommended

Present information that will help to accomplish a procedure in a more effective manner

Present information that gives the technician the benefit of past experience in accomplishing a procedure with greater ease

ABS Handling Caution Caution: Certain components in the Antilock Brake System (ABS) are not intended to be serviced individually. Attempting to remove or disconnect certain system components may result in personal injury and/or improper system operation. Only those components with approved removal and installation procedures should be serviced.

Battery Disconnect Caution Caution: Before servicing any electrical component, the ignition key must be in the OFF or LOCK position and all electrical loads must be OFF, unless instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal, also disconnect the negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to the vehicle or its components.

Brake Dust Caution Caution: A void taking the following actions when you service wheel brake parts:

Do not grind brake linings. Do not sand brake linings. Do not clean wheel brake parts with a dry

brush or with compressed air. Some models or aftermarket brake parts may contain asbestos fibers which can become airborne in dust. Breathing dust with asbestos fibers may cause serious bodily harm. Use a water-dampened cloth in order to remove any dust on brake parts. Equipment is available commercially in order to perform this washing function. These wet methods prevent fibers from becoming airborne.

4 - Cautions and Notices Brake Fluid Caution Caution: Brake fluid may be irritating to the skin or eyes. In case of contact, take the following actions:

Eye contact-rinse eyes thoroughly with water. Skin contact-wash skin with soap and water.

Clutch Dust Caution Caution: When servicing clutch parts, do not create dust by grinding or sanding the clutch disc or by cleaning parts with a dry brush or with compressed air. A water-dampened cloth-NOT SOAKED-should be used. The clutch disc contains asbestos fibers which can become airborne if dust is created during servicing. Breathing dust containing asbestos fibers may cause serious bodily harm.

Electric Coolant Fan Caution Caution: An electric fan under the hood can start up even when the engine is not running and can injure you. Keep hands, clothing and tools away from any underhood electric fan.

Fuel and EVAP Pipe Caution Caution: In order to reduce the risk of fire and personal injury observe the following items:

Replace all nylon fuel pipes that are nicked, scratched or damaged during installation, do not attempt to repair the sections of the nylon fuel pipes

Do not hammer directly on the fuel harness body clips when installing new fuel pipes. Damage to the nylon pipes may result in a fuel leak.

Always cover nylon vapor pipes with a wet towel before using a torch near them. Also, never expose the vehicle to temperatures higher than 115C (239F) for more than one hour, or more than 90C (194F) for any extended period.

Apply a few drops of clean engine oil to the male pipe ends before connecting fuel pipe fittings. This will ensure proper reconnection and prevent a possible fuel leak. (During normal operation, the 0-rings located in the female connector will swell and may prevent proper reconnection if not lubricated.)

Fuel Gauge Leak Caution Caution: Wrap a shop towel around the fuel pressure connection in order to reduce the risk of fire and personal injury. The towel will absorb any fuel leakage that occurs during the connection of the fuel pressure gauge. Place the towel in an approved container when the connection of the fuel pressure gauge is complete.

Pretace

Fuel Pipe Fitting Caution Caution: Always apply a few drops of clean engine oil to the male pipe ends before connecting fuel pipe fittings in order to reduce the risk of fire and personal injury. This will ensure proper reconnection and prevent a possible fuel leak. During normal operation, the 0-rings located in the female connector will swell and may prevent proper reconnection if not lubricated.

Fuel Storage Caution Caution: Do not drain the fuel into an open container. Never store the fuel in an open container due to the possibility of a fire or an explosion.

Gasoline/Gasoline Vapors Caution Caution: Gasoline or gasoline vapors are highly flammable. A fire could occur if an ignition source is present. Never drain or store gasoline or diesel fuel in an open container, due to the possibility of fire or explosion. Have a dry chemical (Class BJ fire extinguisher nearby.

Lower 0-Ring Removal Caution Caution: Verify that the lower (small) 0-ring of each injector does not remain in the lower manifold in order to reduce the risk of fire and personal injury. If the 0-ring is not removed with the injector, lhe replacement injector with new 0-rings will not seat properly in the injector socket. Improper seating could cause a fuel leak.

Moving Parts and Hot Surfaces Caution Caution: While working around a running engine, avoid contact with moving parts and hot surfaces to prevent possible bodily injury.

Relieving Fuel Pressure Caution Caution: Relieve the fuel system pressure before servicing fuel system components in order to reduce the risk of fire and personal injury. After relieving the system pressure, a small amount of fuel may be released when servicing the fuel lines or connections. In order to reduce the chance of personal injury, cover the regulator and the fuel line fittings with a shop towel before disconnecting. This will catch any fuel that may leak out. Place the towel in an approved container when the disconnection is complete.

Road Test Caution Caution: Road test a vehicle under safe conditions and while obeying all traffic laws. Do not attempt any maneuvers that could jeopardize vehicle control. Failure to adhere to these precautions could lead to serious personal injury.

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Preface Safety Glasses and Compressed Air Caution Caution: Wear safety glasses when using compressed air in order to prevent eye injury.

Safety Goggles and Fuel Caution Caution: Always wear safety goggles when working with fuel in order to protect the eyes from fuel splash.

Seat Belt Replacement Caution Caution: To help avoid personal injury from unrepaired crash damage to a restraint system:

Replace each seat belt system worn during a crash unless the crash was minor.

Perform the seat belt check for each seat belt system. Replace the seat belt system if there is any doubt about the condition of system components.

SIR Caution Caution: This vehicle has a Supplemental Inflatable Restraint (SIR) System. Refer to SIR Component Views in order to determine whether you are performing service on or near the SIR components or the SIR wiring. When you are performing service on or near the SIR components or the SIR wiring, refer to Repair Instructions in SIR. Failure to follow the CAUTIONS could cause air bag deployment, personal injury, or unnecessary SIR system repairs.

SIR Handling Caution Caution: When you are performing service on or near the SIR components or the SIR wiring, you must disable the SIR system. Refer to Disabling the SIR System. Failure to follow the correct procedure could cause air bag deployment, personal injury, or unnecessary SIR system repairs.

SIR lnflator Module Disposal Caution Caution: In order to prevent accidental deployment of the air bag which could cause personal injury, do not dispose of an undeployed inflator module as normal shop waste. The undeployed inflator module contains substances that could cause severe illness or personal injury if the sealed container is damaged during disposal. Use the following deployment procedures to safely dispose of an undeployed inflator module. Failure to dispose of an inflator module as instructed may be a violation of federal, state, province, or Joel laws.

Cautions and Notices - 5 SIR lnflator Module Handling and Storage Caution Caution: When you are carrying an undeployed inflator module:

Do not carry the inflator module by the wires or connector on the inflator module

Make sure the bag opening points away from you

When you are storing an undeployed inf/ator module, make sure the bag opening points away from the surface on which the inf/ator module rests. When you are storing a steering column, do not rest the column with the bag opening facing down and the column vertical. Provide free space for the air bag to expand in case of an accidental deployment. Otherwise, personal injury may result.

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SIR Special Tool Caution Caution: In order to avoid deploying the air bag when troubleshooting the SIR system, use only the equipment specified in this manual and the instructions given in this manual. Failure to use the specified equipment as instructed could cause air bag deployment, personal injury to you or someone else, or unnecessary SIR system repairs.

Vehicle Lifting Caution Caution: To avoid any vehicle damage, serious personal injury or death when components are removed from the vehicle and the vehicle is supported by a hoist, perform the following steps:

Chain the vehicle to the hoist at the same end as the components that are being removed.

Support the vehicle at the opposite end from which the components are being removed.

Window Removal Caution Caution: When working with any type of glass, use approved safety glasses and gloves to reduce the chance of personal injury.

Window Retention Caution Caution: When replacing stationary windows, Urethane Adhesive Kit GM PIN 12346392, or a urethane adhesive system meeting GM Specification GM3651M, must be used to maintain original installation integrity. Failure to use the urethane adhesive kit will result in poor retention of the window which may allow unrestrained occupants to be ejected from the vehicle resulting in personal injury.

6 - Cautions and Notices Work Stall Test Caution Caution: One or more of the following guidelines may apply when performing specific required tests in the work stall:

When a test requires spinning the drive wheels with the vehicle jacked up, adhere to the following precautions:

- Do not exceed 56 km/h (35 mph} when spinning one drive wheel with the other drive wheel stopped. This limit is necessary because the speedometer indicates only one-half the actual vehicle speed under these conditions. Personal injury may result from excessive wheel spinning.

- If all of the drive wheels are spinning at the same speed, do not exceed 112 km/h (70 mph). Personal injury may result from excessive wheel spinning.

- All persons should stay clear of the rotating components and the balance weight areas in order to avoid possible personal injury.

- When running an engine in the repair stall for an extended period of time, use care not to overheat the engine and the transmission.

When a test requires jacking up the vehicle and running with the wheels and brake rotors removed, adhere to the following precautions:

Support the suspension of all drive wheels at normal ride height.

- Do not apply the brake with the brake rotors removed.

- Do not place the transmission in PARK with the drive wheels still spinning.

- Turn Off the ignition in order to stop the powertrain components from spinning.

Defective Scan Tool Notice Notice: Do not use a scan tool that displays faulty data. Report the scan tool problem to the manufacturer. Use of a faulty scan tool can result in misdiagnosis and unnecessary parts replacement.

Preface

Fastener Notice Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

Fuel Pressure Notice Notice: Do not allow the fuel pressure to exceed the specified value because damage to the fuel pressure regulator or the fuel pressure gauge may result.

Handling ESD Sensitive Parts Notice Notice: Electrostatic discharge (ESD) can damage many solid-state electrical components. ESD susceptible components may or may not be labeled with the ESD symbol. Handle all electrical components carefully. Use the following precautions in order to avoid ESD damage:

Touch a .metal ground point in order to remove your body's static charge before servicing any electronic component; especially after sliding across the vehicle seat.

Do not touch exposed terminals. Terminals may connect to circuits susceptible the ESD damage.

Do not allow tools to contact exposed terminals when servicing connectors.

Do not remove components from their protective packaging until required to do so.

Avoid the following actions unless required by the diagnostic procedure:

- Jumpering or grounding of the components or connectors.

- Connecting test equipment probes to components or connectors. Connect the ground lead first when using test probes.

Ground the protective packaging of any component before opening. Do not rest solid-state components on metal workbenches, or on top of TVs, radios, or other electrical devices.

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Handling IAC Valve Notice Notice: If the IAC valve has been in service: DO NOT push or pull on the IAC valve pintle. The force required to move the pintle may damage the threads on the worm drive. Also, DO NOT soak the IAC valve in any liquid cleaner or solvent, as damage may result.

Ignition OFF When Disconnecting Battery Notice Notice: Always turn the ignition OFF when connecting or disconnecting battery cables, battery chargers, or jumper cables. Failing to do so may damage the Powertrain Control Module (PCM) or other electronic components.

Latched OTC B1018, B1024 Notice (SDM-RSD) Notice: When DTC 81018 or 81024 has been set it is necessary to replace the inflatable restraint Sensing and Diagnostic Module (SDM). Setting DTC 81018 or 81024 will also cause DTC 81071 to set. When a scan tool clear codes command is issued and the malfunction is no longer present, DTC 81018 or 81024 and DTC 81071 will remain current. Make sure that thB short to ground condition is repaired prior to installing a replacement SDM to avoid damaging the SDM.

Nylon Fuel Lines Notice Notice: Do not attempt to straighten any kinked nylon fuel lines. Replace any kinked nylon fuel feed or return pipes in order to prevent damage to the vehicle.

OBDll System Description Notice Notice: The 08D II symbol is used on the circuit diagrams in order to alert the technician that the circuit is essential for proper 08D II emission control circuit operation. Any circuit which, if it fails causes the Malfunction Indicator Lamp (MIL) to turn on, is identified as an 08Dll circuit.

Cautions and Notices - 7 PCM and ESD Notice Notice: Do not touch the connector pins or soldered components on the circuit board in order to prevent possible electrostatic discharge (ESD) damage to the PCM.

Servicing and Replacing Seat Belts Notice Notice: To prevent possible seat belt damage, refer to the following items before servicing or replacing lap and shoulder belts, including single loop belt systems:

Lap and shoulder belts will be serviced as follows: - Replace only the part in question. - All belts need to be serviced as a set to

assure the belt components are from the same supplier.

- Do not intermix standard and deluxe belts on front or rear seats.

- All attachment hardware must be replaced, not reused.

Keep sharp edges and damaging objects away from belts.

Avoid bending or damaging any portion of the belt buckle or latch plate.

Do not bleach or dye belt or strap webbing. Clean with a mild soap solution and water.

When installing lap or shoulder belt anchor bolts, start the bolts by hand to ensure that the bolts are threaded straight.

Do not attempt repairs on lap or shoulder belt retractor mechanisms to lap belt retractor covers. Replace defective assemblies with new service replacement parts.

Do not attempt to remove the seat belt retractor cover. The cover and the long rivet securing the cover to the retractor are not available as service replacement parts.

8 - Cautions and Notices Preface

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Engine Table of Contents 6-1

Section 6

Engine

Engine Mechanical - 3.8L ............................. 6-13 Oil Pan Replacement ................................. 6-107 Specifications ................................................ 6-13 Oil Pump Pipe and Screen Assembly

Fastener Tightening Specifications ............... 6-13 Replacement ........................................... 6-113 Engine Mechanical Specifications ................. 6-14 Engine Flywheel Replacement .................... 6-114 GM SPO Group Numbers ............................ 6-17 Crankshaft Rear Oil Seal Replacement ...... 6-116 Sealers, Adhesives, and Lubricants .............. 6-18

Diagnostic Information and Procedures ....... 6-18 Base Engine Misfire Diagnosis ..................... 6-18 Engine Compression Test ............................ 6-20 Engine Noise Diagnosis (Base Engine) ........ 6-20 Engine Noise Diagnosis (Valve Train) .......... 6-23 Oil Consumption Diagnosis .......................... 6-25 Oil Pressure Diagnosis and Testing ............. 6-25 Oil Leak Diagnosis ....................................... 6-26 Cylinder Leakage Test ................ : ................ 6-28 Drive Belt Diagnosis .................................... 6-28 Disassembled Views .................................... 6-29

Repair Instructions ........................................ 6-34 Drive Belt Replacement ............................... 6-34 Drive Belt Tensioner Replacement ............... 6-35 Engine Mount Inspection .............................. 6-36 Engine Mount Replacement ......................... 6-37 Oil Level Indicator and Tube Replacement ... 6-45 Intake Manifold Replacement (Upper) ........... 6-46

Crankshaft Rear Oil Seal and Housing Replacement ................................ : ........... 6-116

Engine Replacement .................................. 6-118 Engine Oil and Oil Filter Replacement ....... 6-151 Draining Fluids and Oil Filter Removal ....... 6-152 Engine Flywheel Removal

(Manual Transmission) ............................ 6-153 Engine Flywheel Removal

(Automatic Transmission) ........................ 6-153 Drive Belt Tensioner Removal (VIN K) ....... 6-154 Oil Level Indicator and Tube Removal ....... 6-154 Water Outlet Removal .............. : ................. 6-1q4 Water Pump Removal ................................ 6-155 Intake Manifold Removal (Upper) ............... 6-155 Intake Manifold Removal (Lower) ............... 6-157 Exhaust Manifold Removal (Left Side) ... : .... 6-157 Exhaust Manifold Removal (Right Side) ..... 6-158 Valve Rocker Arm Cover Removal

(Left Side) .............................................. 6-159 Valve Rocker Arm Cover Removal

Intake Manifold Replacement (Lower) ........... 6-56 (Right Side) ............................................ 6-160 Exhaust Manifold Replacement (Left) ........... 6-57 Valve Rocker Arm and Push Rod Exhaust Manifold Replacement (Right) ......... 6-64 Removal ................................................. 6-160 Valve Rocker Arm Cover Cylinder Head Removal ............................. 6-160

Replacement (L.:eft ) .................................. 6-70 Valve Lifter Removal .................................. 6-161 Valve Rocker Arm Cover Crankshaft Balancer Removal .................... 6-161

Replacement (Right) ................................. 6-74 Cran ks haft Front Oil Seal Removal ............ 6-162 Valve Rocker Arm and Push Rod Engine Front Cover Removal ..................... 6-162

Replacement ............................................ 6-77 Oil Filter Adapter Removal ......................... 6-163 Valve Stem Oil Seal and Valve Spring Oil Pump Cover and Gear Set Removal .... 6-163

Replacement ............................................ 6-79 Timing Chain and Sprockets Valve Lifter Replacement ............................. 6-82 Removal (VIN K) ................................ : ... 6-164 Crankshaft Balancer Replacement ................ 6-83 Camshaft Removal ..................................... 6-165 Crankshaft Front Oil Seal Replacement ........ 6-86 Balance Shaft Removal .............................. 6-165 Engine Front Cover Replacement ................ 6-86 Crankshaft Rear Oil Seal Removal ............. 6-166 Oil Pump Cover and Gear Set Crankshaft Rear Oil Seal and Housing

Replacement ............................................ 6-96 Removal ................................................. 6-167 Oil Filter Adapter and Valve Assembly

Replacement ............................................ 6-96 Oil Pan Removal ................. : ........................ 6-167 Oil Pump Pipe and Screen

) Timing Chain and Sprockets Replacement ........................................... 6-100 Assembly Removal ................................. 6-168 Piston, Connecting Rod, and Bearing Camshaft Replacement .............................. 6-101 Removal ................................. , ................. 6-168 Cylinder Head Replacement (Left) .............. 6-103 Crankshaft and Bearings Removal ...... ;.; ..... 6-169 Cylinder Head Replacement (Right) ........... 6-105 Engine Block Plug Removal .... : ................... 6-170

6-2 Table of Contents Engine Engine Block Clean and Inspect ................ 6-170 Oil Pump Cover and Gear Set Cylinder Boring and Honing ....................... 6-172 Installation .............................................. 6-208 Crankshaft and Bearings Clean Oil Filter Adapter Installation ...................... 6-208

and Inspect ............................................ 6-173. Engine Front Cover Installation .................. 6-209 Crankshaft Balancer Clean and Inspect ...... 6-176 Crankshaft Front Oil Seal Installation ......... 6-210 Engine Flywheel Clean and Inspect Crankshaft Balancer Installation

(Automatic Transmission) ........................ 6-177 (Automatic Transmission) ........................ 6-210 Engine Flywheel Clean and Inspect Crankshaft Balancer Installation

(Manual Transmission) ............................ 6-177 (Manual Transmission) ............................ 6-211 Piston and Connecting Rod Disassemble ... 6-177 Valve Lifter Installation ............................... 6-211 Piston, Connecting Rod and Bearings Cylinder Head Installation ........................... 6-212

Clean/Inspect .......................................... 6-178 Valve Rocker Arm and Push Rod Piston Selection ......................................... 6-180 Installation .............................................. 6-212 Piston and Connecting Rod Assemble ........ 6-182 Valve Rocker Arm Cover Installation Camshaft Bearing Removal ........................ 6-183 (Left Side) .............................................. 6-213 Camshaft and Bearings Clean Valve Rocker Arm Cover Installation

and Inspect .................................... : ...... 6-184 (Right Side) ............................................ 6-213 Camshaft Bearing Installation ..................... 6-185 Exhaust Manifold Installation (Left Side) ..... 6-213 Timing Chain and Sprockets Clean Exhaust Manifold Installation (Right Side) ... 6-215

and Inspect (VIN K) ................................ 6-185 Intake Manifold Installation (Upper) ............ 6-216 Valve Rocker Arm and Push Rods Intake Manifold Installation (Lower) ............ 6-217

Clean and Inspect .................................. 6-186 Water Pump Installation ............................ ,6-218 Valve Lifters and Guides Clean Water Outlet Installation ............................. 6-219

and Inspect ............................................ 6-186 Oil Level Indicator and Tube Installation ..... 6-219 Cylinder Head Disassemble ....................... 6-186 Drive Belt Tensioner Installation ................. 6-219 Cylinder Head Clean and Inspect ............... 6-187 Engine Flywheel Installation Valve GuideReamingNalve and (Manual Transmission) ............................ 6-220

Seat Grinding ......................................... 6-189 Engine Flywheel Installation Cylinder Head Assemble ............................ 6-192 (Automatic Transmission) ........................ 6-220 Oil Pump Clean and Inspect ...................... 6-193 Description and Operation .......................... 6-221 Valve Rocker Arm Cover Clean Engine Component Description .................. 6-221

and Inspect ............................................ 6-194 Lubrication Description ............................... 6-222 Oil Pan Clean and Inspect ......................... 6-195 Intake Manifold Clean and

Thread Repair ............................ ~ ............... 6-223 Cleanliness and Care ................................. 6-223

Inspect (Upper) ....................................... 6-195 Intake Manifold Clean and

Inspect (Lower) ....................................... 6-195 Exhaust Manifold Clean and Inspect .......... 6-196 Water Pump Clean and Inspect ................. 6-196 Engine Front Cover Clean and Inspect ...... 6-197 Balance Shaft Clean and Inspect ............... 6-197

Replacing Engine Gaskets ......................... 6-224 Use of RTV and Anaerobic Sealer ............. 6-224 Separating Parts ........................................ 6-225 Installation Precautions ............ , ................. 6-225 Tools and Equipment ................................. 6-225

Special Tools and Equipment ..................... 6-226 Balance Shaft Bearing and/or Bushing

Removal ................................................. 6-197 Balance Shaft Bearing and/or Bushing

Installation .............................................. 6-198 Service Prior to Assembly .......................... 6-198 Engine Block Plug Installation ............... : .... 6-199 Crankshaft and Bearings Installation ........... 6-199 Piston, Connecting Rod, and Bearing

Installation .............................................. 6-201 Oil Pump Pipe and Screen Assembly

Installation .............................................. 6-202

Engine Mechanical - 5.7L ........................... 6-229 Specifications .............................................. 6-229

Fastener Tightening Specifications ............. 6-229 Engine Mechanical Specifications ............... 6-231 GM SPO Group Numbers .......................... 6-234 Sealers, Adhesives, and Lubricants ............ 6-236 Thread Repair Specifications ...................... 6-237

Diagnostic Information and Procedures ..... 6-250 Base Engine Misfire Diagnosis ................... 6-250 Engine Compression Test .......................... 6-252

Oil Pan Installation ..................................... 6-202 Engine Noise Diagnosis ............................. 6-252 Camshaft Installation .................................. 6-203 Valve Train Diagnosis ................................ 6-254 Balance Shaft Installation ........................... 6-203 Oil Consumption Diagnosis ........................ 6-255 Crankshaft Rear Oil Seal and Housing

Installation .............................................. 6-205 Oil Pressure Diagnosis and Testing ........... 6-256 Oil Leak Diagnosis ..................................... 6-256 (

Crankshaft Rear Oil Seal Installation .......... 6-206 Drive Belt Diagnosis ................................... 6-258 Timing Chain and Sprockets Visual Identification ..................................... 6-259

Installation (VIN K) ................................. 6-207 Disassembled Views .................................. 6-259

Engine Repair Instructions ...................................... 6-267

Drive Belt Replacement (Accessory) ........... 6-267 Drive Belt Replacement (A/C) .................... 6-269

) Drive Belt Idler Pulley Replacement (Accessory) ............................................. 6-270 Drive Belt Idler Pulley

Replacement (A/C) ................................. 6-271 Drive Belt Tensioner Replacement

(Accessory) ............................................. 6-272 Drive Belt Tensioner Replacement (A/C) .... 6-273 Engine Mount Replacement (Right Side) .... 6-274 Engine Mount Replacement (Left Side) ...... 6~277 Intake Manifold Replacement ..................... 6-281 Vapor Vent Pipe Replacement ................... 6-296 Engine Valley Cover Replacement ............. 6-297 Valve Rocker Arm Cover Replacement

(Right Side) ............................................ 6-299 Valve Rocker Arm Cover Replacement

(Left Side) .............................................. 6-302 Valve Rocker Arm and Push Rod

Replacement ........................................... 6-307 Valve Stem Oil Seal and Valve Spring

Replacement ........................................... 6-308 Oil Level Indicator and Tube

Replacement ........................................... 6-311 Exhaust Manifold Replacement

(Right Side) ............................................ 6-315 Exhaust Manifold Replacement

(Left Side) .............................................. 6-321 Cylinder Head Replacement (Right Side) ... 6-328 Cylinder Head Replacement (Left Side) ...... 6-331 Valve Lifter Replacement ........................... 6-339 Crankshaft Balancer Replacement .............. 6-339 Crankshaft Front Oil Seal Replacement ...... 6-346 Engine Front Cover Replacement ............... 6c348 Crankshaft Rear Oil Seal Replacement ...... 6-357 Engine Rear Cover Replacement ............... 6-358 Oil Pan Replacement ................................. 6-360 Oil Pump, Pump Screen and Deflector

Replacement ........................................... 6-369 Timing Chain and Sprockets

Replacement ........................................... 6-370 Camshaft Replacement .............................. 6-371 Engine Flywheel Replacement .................... 6-374 Engine Replacement .................................. 6-376 Engine Oil and Oil Filter Change ............... 6-408 Draining Fluids and Oil Filter Removal ....... 6-409 Crankshaft Balancer Removal .................... 6-411 Engine Flywheel Removal .......................... 6-412 Oil Level Indicator and Tube Removal ....... 6-413 Exhaust Manifold Removal (Left Side) ........ 6-413 Exhaust Manifold Removal (Right Side) ..... 6-414 Water Pump Removal ................................ 6-416 Throttle Body Removal ............................... 6-416 Fuel Rail and Injectors Removal ................ 6-417 Intake Manifold Removal ............................ 6-418 Vapor Vent Pipe Removal .......................... 6-421

\.l

Engine Valley Cover Removal .................... 6-421 Valve Rocker Arm Cover Removal

(Left Side) .............................................. 6-422

Table of Contents 6-3 Valve Rocker Arm Cover Removal

(Right Side) ............................................ 6-423 Valve Rocker Arm and Push Rod

Removal ................................................. 6-424 Cylinder Head Removal (Left Side) ............ 6-425 Cylinder Head Removal (Right Side) .......... 6-426 Valve Lifter Removal .................................. 6-427 Oil Filter, Adapter and Pan Cover

Removal ................................................. 6-428 Oil Pan Removal ........................................ 6-429 Engine Front Cover Removal ..................... 6-431 Engine Rear Cover Removal ...................... 6-431 Oil Pump, Pump Screen and Deflector

Removal ................................................. 6-432 Timing Chain and Sprockets Removal ........ 6-433 Camshaft Removal ..................................... 6-434 Piston, Connecting Rod, and

Bearing Removal .................................... 6-435 Crankshaft and Bearings Removal ............. 6-437 Engine Block Plug Removal ....................... 6-440 Engine Block Clean and Inspect ................ 6-443 Cylinder Boring and Honing ....................... 6-444 Crankshaft and Bearings Clean and

Inspect (Cleaning and Inspection) ........... 6-446 Crankshaft and Bearings Clean and

Inspect (Measuring Main Brg Clearance) ............. 6-456

Crankshaft and Bearings Clean and Inspect (Conn. Rod Bearing Clearance) .............................................. 6-460

Crankshaft Balancer Clean and Inspect ...... 6-462 Engine Flywheel Clean and Inspect ........... 6-462 Piston and Connecting Rod Disassemble ... 6-463 Piston, Connecting Rod and Bearings

Clean/Inspect (Piston and Pin) ................ 6-465 Piston, Connecting Rod and Bearings

Clean/Inspect (Connecting Rod and Bearings) ................................................ 6-467

Piston, Connecting Rod and Bearings Clean/Inspect (Measuring Piston Ring End Gap) ............................................... 6-470

Piston Selection ......................................... 6-470 Piston and Connecting Rod Assemble ........ 6-471 Camshaft Bearing Removal

(Removal Procedure) .............................. 6-474 Camshaft Bearing Removal

(Tool Instructions) ................................... 6-476 Camshaft and Bearings Clean

and Inspect ............................................ 6-478 Camshaft Bearing Installation ..................... 6-481 Timing Chain and Sprockets Clean

and Inspect ............................................ 6-482 Valve Rocker Arm and Push Rods

Clean and Inspect .................................. 6-483 Valve Lifters and Guides Clean

and Inspect ............................................ 6-484 Cylinder Head Disassemble ....................... 6-485 Cylinder Head Clean and Inspect ............... 6-487 Valve Guide ReamingNalve and

Seat Grinding ......................................... 6-488

6-4 Table of Contents Engine Cylinder Head Assemble ............................ 6-493 Separating Parts ........................................ 6-57 4 Oil Pump Disassemble ............................... 6-496 Tools and Equipment ................................. 6-574 Oil Pump Clean and Inspect ...................... 6-49S Special Tools and Equipment ..................... 6-575 Oil Pump Assemble ................................... 6-500 Engine Front Cover Clean and Inspect ...... 6-502 Engine Rear Cover Clean and Inspect ....... 6-503 Engine Valley Cover Clean and Inspect ..... 6-503 Valve Rocker Arm Cover Clean and

Inspect ................................................... 6-504 Oil Pan Clean and Inspect ......................... 6-506 Intake Manifold Clean and Inspect ............. 6-509 Exhaust Manifold Clean and Inspect .......... 6-512 Vapor Vent Pipe Clean and Inspect ........... 6-514 Water Pump Clean and Inspect ................. 6-514 Service Prior to Assembly .......................... 6-515 Engine Block Plug Installation .................... 6-515 Crankshaft and Bearings Installation ........... 6-51 S Piston, Connecting Rod, and Bearing

Installation .............................................. 6-521

Engine Cooling ............................................. 6-5SO Specifications .............................................. 6-5SO

Fastener Tightening Specifications ............. 6-5SO Engine Cooling System Specifications ........ 6-5SO GM SPO Group Numbers .......................... 6-5SO

Schematic and Routing Diagrams .............. 6-5S1 Cooling System Schematic References ...... 6-5S1 Cooling System Schematic Icons ............... 6-5S1 Cooling Fan Schematics ............................ 6-5S2

Component Locator ..................................... 6-5S4 Cooling System Components ..................... 6-5S4 Cooling System Connector End Views ....... 6-5S5

Diagnostic Information and Procedures ..... 6-5S6 Engine Overheating .................................... 65S6 Loss of Coolant ......................................... 65S7

Camshaft Installation .................................. 6-523 Timing Chain and Sprockets Installation ..... 6-524 Oil Pump, Pump Screen and Deflector

Installation .............................................. 6-526

Thermostat Diagnosis ................................. 6-5SS Engine Fails To Reach Normal

Operating Temp ...................................... 65SS Coolant Concentration Testing .................... 65S9

Engine Rear Cover Installation ................... 6-527 Crankshaft Rear Oil Seal Installation .......... 6-530 Engine Front Cover Installation .................. 6-530 Crankshaft Front Oil Seal Installation ......... 6-533 Oil Pan Installation ..................................... 6-533

Cooling System Leak Testing ..................... 6590 Pressure Cap Testing ................................ 6-591

Repair Instructions ...................................... 6-592 Draining and Filling Cooling System (V6) ... 6592 Draining and Filling Cooling System (VS) ... 6595

Oil Filter, Adapter, Pan Cover Installation ... 6-536 Valve Lifter Installation ............................... 6-537 Cylinder Head Installation (Left Side) ......... 6-53S Cylinder Head Installation (Right Side) ....... 6-539 Valve Rocker Arm and Push Rod

Installation .............................................. 6-541 Valve Rocker Arm Cover Installation

Flushing ..................................................... 659S Radiator Cleaning ...................................... 659S Coolant Recovery Reservoir

Replacement ........................................... 659S Coolant Recovery Pipe Replacement ......... 6602 Vapor Vent Pipe Replacement ................... 6602 Radiator Hose Replacement - Inlet (V6) ..... 6603

(Left Side) .............................................. 6-543 Valve Rocker Arm Cover Installation

(Right Side) ............................................ 6-544 Engine Valley Cover Installation ................. 6-545 Vapor Vent Pipe Installation ....................... 6-546 Intake Manifold Installation ......................... 6-547 Fuel Rail and Injectors Installation .............. 6-551 Throttle Body Installation ............................ 6-551 Water Pump Installation ............................. 6-552 Exhaust Manifold Installation (LeftSide) ..... 6-553 Exhaust Manifold Installation (Right Side) ... 6-554 Oil Level Indicator and Tube Installation ..... 6-556 Engine Flywheel Installation ....................... 6-556 Crankshaft Balancer Installation .................. 6-557 Engine Set-Up and Testing ........................ 6-559

Description and Operation .......................... 6-560

Radiator Hose Replacement - Inlet (VS) ..... 6606 Radiator Hose Replacement -

Outlet (V6) .............................................. 6609 Radiator Hose Replacement -

Outlet (VS) .............................................. 6-612 Throttle Body Heater Hose

Replacement - Inlet ................................ 6-614 Throttle Body Heater Hose

Replacement - Outlet .............................. 6-615 Cooling Fan Replacement - Electric ........... 6-616 Cooling Fan Motor Replacement -

Electric ................................................... 6-621 Cooling Fan Relay Replacement ................ 6-622 Thermostat Housing

Replacement (3.SL V6) ........................... 6-623 Thermostat Housing

Replacement (5.7L VS) ........................... &625 Engine Component Description .................. 6-560 Thermostat Replacement (3.SL V6) ............ &627 New Product Information ............................ 6-561 Thermostat Replacement (5. 7L VS) ............ &629 Engine Identification ................................... 6-562 Lubrication ................................................. 6-563 Thread Repair ............................................ 6-564

Radiator Support Replacement ................... 6-631 Water Pump Replacement (3.SL V6) .......... &634 Water Pump Replacement (5. 7L VS) .......... &636 (

Cleanliness and Care ................................. 6-572 Coolant Level Sensor Replacement ............ &644 Replacing Engine Gaskets ......................... 6-573 Engine Coolant Temperature Sensor Use of RTV and Anaerobic Sealer ............. 6-573 Replacement (3.SL V6) ........................... 6-645

Engine Table of Contents 6-5 Engine Coolant Temperature Sensor Battery (Parasitic) Load Test ...................... 6-676

Replacement (5.7L VS) ........................... 6-646 Battery Is Undercharged or Overcharged ... 6-6SO Drain Cock Replacement ............................ 6-646 Generator Assembly Check ........................ 6-6S1 Fan Shroud Replacement ........................... 6-647 Spark Plug Visual Diagnosis ...................... 6-6S2 Radiator Replacement ................................ 6-64S Spark Plug Wires Not Operating Radiator Air Baffle Assemblies and Properly .................................................. 6-6S4

Deflectors (Lower) .................................. 6-652 Repair Instructions ...................................... 6-6S4 Radiator Air Baffle Assemblies and Starter Motor Replacement (3.SL V6) ......... 6-6S4

Deflectors (Upper) .................................. 6-653 Starter Motor Replacement (5.7L VS) ......... 6-6S6 Coolant Heater Replacement (3.SL V6) ...... 6-654 Starter Shield Replacement (3.SL V6) ........ 6-6SS Coolant Heater Replacement (5.7L VS) ...... 6-655 Battery Replacement .................................. 6-6S9 Coolant Heater Cord

Replacement (3.8L V6) ........................... 6-657 Coolant Heater Cord

Replacement (5.7L VS) ........................... 6-65S

Battery Charging ........................................ 6-691 Jump Starting in Case of Emergency ......... 6-692 Battery Negative Cable Disconnect/

Connect Procedure ................................. 6-693 Description and Operation .......................... 6-660

Cooling System Description ........................ 6-660 Coolant Recovery System Description ........ 6-660 Throttle Body Coolant System

Description ............................................. 6-660 Coolant Heater Description ......................... 6-660 Radiator Assembly Description ................... 6-661 Pressure Cap Description ........................... 6-662 Engine Cooling Fan Description -

Electric ................................................... 6-663 Cooling Fan Relay Description ................... 6-663 Water Pump Description ............................ 6-663 Thermostat Description ............................... 6-663 Engine Coolant Temperature Sensor

Description ............................................. 6-663 Air Baffles and Seals Description ............... 6-663 Coolant Sensor Description ........................ 6-664 Coolant Description .................................... 6-664

Special Tools and Equipment ..................... 6-664

Battery Cable Replacement (3.SL V6) ........ 6-695 Battery Cable Replacement (5.7L VS) ........ 6-700 Generator Bracket Replacement ................. 6-705 Generator Brace Replacement ................... 6-706 Generator Replacement (3.SL V6) .............. 6-707 Generator Replacement (5.7L VS) .............. 6-709 Spark Plug Wire Harness

Replacement (V6) ................................... 6-711 Spark Plug Wire Harness

Replacement (VS) ................................... 6-714 Spark Plug Replacement ............................ 6-715 Ignition Coil Replacement ........................... 6-716 Ignition Coil and ICM Replacement ............ 6-71 S

Description and Operation .......................... 6-720 Starting System Circuit Description ............. 6-720 Battery Description ..................................... 6-720 Charging System Description ..................... 6-721 Charging System Operation ....................... 6-722 Charging System Circuit Description ........... 6-722

Engine Electrical .......................................... 6-665 Ignition System Description (V6) .. , ............. 6-722 Specifications .............................................. 6-665 Ignition System Description (VS) ................ 6-723

Fastener Tightening Specifications ............. 6-665 Special Tools and Equipment ..................... 6-724 Battery Usage ............................................ 6-665 Battery Temperature vs Voltage Drop ........ 6-666 Starter Motor Usage ............... ; ................... 6-666 Generator Usage ....................................... 6-666 GM SPO Group Numbers .......................... 6-666

Schematic and Routing Diagrams .............. 6-667 Engine Electrical Schematic References ..... 6-667

Engine Controls - 3.8L ................................ 6-725 Specifications .............................. ; ............... 6-725

Temperature vs Resistance ........................ 6-725 Fastener Tightening Specifications ............. 6-725 Engine Scan Tool Data List ....................... 6-726 Engine Scan Tool Data Definitions ............. 6-731 DTC List ..................................................... 6-736

Engine Electrical Schematic Icons .............. 6-667 Starting and Charging Schematics .............. 6-66S

Component Locator ..................................... 6-670 Engine Electrical Components .................... 6-670 Engine Electrical Connector End Views ...... 6-671

Diagnostic Information and Procedures ..... 6-671 Starting System Check ............................... 6-671 Charging System Check ............................. 6-672 Starter Solenoid Does Not Click ................. 6-672 Engine Cranks/Cranks Slowly, but

Does Not Start ....................................... 6-674

Fuel System Specifications (VIN K) ............ 6-739 GM SPO Group Numbers .......................... 6-740

Schematic and Routing Diagrams .............. 6-7 41 Emission Hose Routing Diagram ................ 6-741 Engine Controls Schematic References ...... 6-742 Engine Controls Schematic Icons ............... 6-742 Engine Controls Schematics ....................... 6-7 43

Component Locator ............. : ....................... 6-75S Engine Controls Components ..................... 6-75S Engine Controls Component Views ............ 6-763 PCM Connector End Views ........................ 6-767

Starter No Load Test ................................. 6-675 Engine Controls Connector End Views ....... 6-771 Battery Common Causes of Failure ............ 6-675 Diagnostic Information and Procedures ..... 6-77S Battery Hydrometer Displays Dark or A Powertrain On Board Diagnostic

Yellow Dot .............................................. 6-676 (OBD) System Check ............................. 6-77S

6-6 Table of Contents No Malfunction Indicator Lamp ................... 6-780 Data Link Connector Diagnosis .................. 6-782 Engine Cranks but Does Not Run .............. 6-784 Fuel Pump Relay Circuit Diagnosis ............ 6-791 Fuel System Diagnosis .............................. 6-794 DTC P0101 Mass Air Flow (MAF) Sensor

Performance ........................................... 6-795 DTC P0102 Mass Air Flow (MAF) Sensor

Circuit Low Frequency ............................ 6-799 DTC P0103 Mass Air Flow (MAF) Sensor

Circuit High Frequency ........................... 6-802 DTC P0107 Manifold Absolute Pressure

(MAP) Sensor Circuit Low Voltage .......... 6-805 DTC P0108 Manifold Absolute Pressure

(MAP) Sensor Circuit High Voltage ......... 6-808 DTC P0112 Intake Air Temperature (IAT)

Sensor Circuit Low Voltage ..................... 6-811 DTC P0113 Intake Air Temperature (IAT)

Sensor Circuit High Voltage .................... 6-813 DTC PO 117 Engine Coolant Temperature

(ECT) Sensor Circuit Low Voltage .......... 6-816 DTC P0118 Engine Coolant Temperature

(ECT) Sensor Circuit High Voltage .......... 6-818 DTC P0121 Throttle Position (TP) Sensor

Performance ........................................... 6-821 DTC P0122 Throttle Position (TP) Sensor

Circuit Low Voltage ................................. 6-824 DTC P0123 Throttle Position (TP) Sensor

Circuit High Voltage ................................ 6-827 DTC P0125 Engine Coolant Temperature

ECT) Excessive Time to Closed Loop Fuel Control ................................... 6-830

DTC P0131 H02S Circuit Low Voltage Bank 1 Sensor 1 .................................... 6-833

DTC P0132 H02S Circuit High Voltage Bank 1 Sensor 1 .................................... 6-836

DTC P0133 H02S Slow Response Bank 1 Sensor 1 .................................... 6-839

DTC P0134 H02S Circuit Insufficient Activity Bank 1 Sensor ........................... 6-842

DTC P0135 H02S Heater Performance Bank 1 Sensor 1 .................................... 6-845



DTC P0146 H02S Circuit Insufficient . Activity Bank 1 Sensor 3 ........................ 6-854




DTC P0153 H02S Slow Response Bank 2 Sensor 1 .................................... 6-866

DTC P0154 H02S Circuit Insufficient Activity Bank 2 Sensor 1 ........................ 6-869


Engine DTC P0171 Fuel Trim System Lean

Bank 1 ................................................... 6-876 DTC P0172 Fuel Trim System Rich

Bank 1 ................................................... 6-880 DTC P0174 Fuel Trim System Lean

Bank 2 ................................................... 6-884 DTC P0175 Fuel Trim System Rich

Bank 2 ................................................... 6-887 DTC P0201 Injector 1 Control Circuit .......... 6-890 DTC P0202 Injector 2 Control Circuit .......... 6-893 DTC P0203 Injector 3 Control Circuit .......... 6-896 DTC P0204 Injector 4 Control Circuit .......... 6-899 DTC P0205 Injector 5 Control Circuit .......... 6-902 DTC P0206 Injector 6 Control Circuit .......... 6-905 DTC P0230 Fuel Pump Relay Control

Circuit ..................................................... 6-908 DTC P0300 Engine Misfire Detected .......... 6-911 DTC P0325 Knock Sensor System ............. 6-916 DTC P0327 Knock Sensor (KS) Circuit ....... 6-918 DTC P0332 Knock Sensor 2 Circuit ........... 6-921 DTC P0336 18X Reference Signal Circuit ... 6-924 DTC P0341 Camshaft Position (CMP)

Sensor Performance ............................... 6-927 DTC P0401 Exhaust Gas Recirculation

(EGR) Flow Insufficient ........................... 6-932 DTC P0403 Exhaust Gas Recirculation

(EGR) Solenoid Control Circuit ............... 6-934 DTC P0404 Exhaust Gas Recirculation

(EGR) Open Position Performance ......... 6-938 DTC P0405 Exhaust Gas Recirculation

(EGR) Position Sensor Circuit Low Voltage ................................................... 6-942

DTC P0420 Catalyst System Low Efficiency ................................................ 6-946

DTC P0440 Evaporative Emission (EVAP) System ....................................... 6-949

DTC P0442 Evaporative Emission (EV AP) Control System Small Leak Detected ...... 6-954

DTC P0446 Evaporative Emission (EVAP) Vent System Performance ...................... 6-958

DTC P0452 Fuel Tank Pressure Sensor Circuit Low Voltage ................................. 6-962

DTC P0453 Fuel Tank Pressure Sensor Circuit High Voltage ................................ 6-965

DTC P0500 Vehicle Speed Sensor (VSS) Circuit .......................................... 6-968

DTC P0506 Idle Speed Low ....................... 6-970 DTC P0507 Idle Speed High ...................... 6-973 DTC P0530 Air Conditioning (A/C)

Refrigerant Pressure Sensor Circuit ........ 6-976 DTC P0560 System Voltage ....................... 6-979 DTC P0601Control Module Read Only

Memory (ROM) ....................................... 6-982 DTC P0602 Control Module Not

Programmed ........................................... 6-983 DTC P0704 Clutch Switch Circuit ............... 6-984 DTC P0705 Trans Range Switch Circuit ..... 6-987 DTC P0706 Trans Range Switch

Performance ........................................... 6-991

(

(

\ /

Engine DTC P1106 Manifold Absolute Pressure

(MAP) Sensor Circuit Intermittent High Voltage ................................................... 6-994

DTC P1107Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent Low Voltage ................................................... 6-996

DTC P1111 Intake Air Temperature (IAT) Sensor Circuit Intermittent High Voltage ................................................... 6-998

DTC P1112 Intake Air Temperature (IAT) Sensor Circuit Intermittent Low Voltage ................................................. 6-1000

DTC P1114 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent Low Voltage ................................................. 6-1002

DTC P1115 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage ................................................. 6-1004

DTC P1121 Throttle Position (TP) Sensor Circuit Intermittent High Voltage ................................................. 6-1006

DTC P1122 Throttle Position (TP) Sensor Circuit Intermittent Low Voltage .6-1008

DTC P1133 H02S Insufficient Switching Bank 1 Sensor 1 .................................. 6-101 O

DTC P1134 H02S Transition Time Ratio Sensor 1 ..................................... 6-1013

DTC P1153 H02S Insufficient Switching Bank 2 Sensor 1 .................................. 6-1016

DTC P1154 H02S Transition Time Ratio Bank 2 Sensor 1 ......................... 6-1019

DTC P1336 Crankshaft Position (CKP) System Variation Not Learned .............. 6-1022

DTC P1351 Ignition Coil Control Circuit High Voltage ......................................... 6~1024

DTC P1352 Ignition Bypass Circuit High Voltage ......................................... 6-1026

DTC P1361 Ignition Coil Control Circuit Low Voltage ......................................... 6-1028

DTC P1362 Ignition Bypass Circuit Low Voltage ......................................... 6-1031

DTC P1374 Crankshaft Position (CKP) High to Low Resolution Frequency Correlation ............................................ 6-1034

DTC P1380 Misfire Detected - Rough Road Data Not Available ...................... 6-1037

DTC P1381 Misfire Detected - No Communication with Brake Control Module ................................................. 6-1038

DTC P1404 Exhaust Gas Recirculation (EGR) Closed Position Performance ..... 6-1040

DTC P1441 Evaporative Emission (EVAP) System Flow During Non-Purge ............................................ 6-1043

DTC P1554 Cruise Control Feedback Circuit ................................................... 6-1047

DTC P1626 Theft Deterrent Fuel Enable Signal Lost ................................ 6-1049

DTC P1629 Theft Deterrent Fuel Enable Signal Not Received ................. 6-1052

DTC P1635 5 Volt Reference Circuit ........ 6-1054

Table of Contents 6-7 DT~ P1_639 5 Volt Reference (B)

Circuit ................................................... 6-1058 DTC P1641 A/C Relay Control Circuit ...... 6-1060 DTC P1651 Fan 1 Relay Control Circuit ... 6-1066 DTC P1652 Fan 2 Relay Control Circuit ... 6-1070

DT~ P1_653 Fuel Level Output Control C1rcu1t ................................................... 6-1074

DTC P1662 Cruise Control Inhibit Control Circuit ....................................... 6-1077 DT~ P1_ 663 Generator Lamp Control

C1rcu1t ................................................... 6-1080 DTC P1665 EVAP Vent Solenoid

Control Circuit ....................................... 6-1083 DTC P1671 MIL Control Circuit ................ 6-1086 DTC P1672 Low Engine Oil Level

Lamp Control CKT ................................ 6-1089 DTC P1676 EVAP Canister Purge

Solenoid Control CKT ........................... 6-1092 Intermittent Conditions .............................. 6-1095 Hard Start ................................................ 6-1095 Surges/Chuggles ...................................... 6-1097 Lack of Power, Sluggishness, or

Sponginess ........................................... 6-1099 Detonation/Spark Knock ........................... 6-1101 Hesitation, Sag, Stumble .......................... 6-1102 Cuts Out, Misses ..................................... 6-1104 Poor Fuel Economy ................................. 6-1106 Rough, Unstable, or Incorrect Idle and

Stalling ................................................. 6-1108 Dieseling, Run-On .................................... 6-111 o Backfire .................................................... 6-111 o Restricted Exhaust System Check ............ 6-1112 Powertrain Control Module Diagnosis ....... 6-1113 PCM Controlled Warning Lamps

Diagnosis .............................................. 6-1114 PCM Controlled A/C Circuit Diagnosis ...... 6-1118 Electric Cooling Fan Diagnosis ................. 6-1124 Engine Oil Level Sensor/Switch

Diagnosis .............................................. 6-1133 Fuel System Pressure Test ...................... 6-1135 Fuel Injector Balance Test ........................ 6-1141 Fuel lnj Coil Test - ECT Between

10-35 Degrees C .................................. 6-1144 Fuel lnj Coil Test - ECT Outside

10-35 Degrees C .................................. 6-1146 Fuel Tank Leak Check ............................. 6-1148 Fuel Tank Vent Valve Diagnosis .............. 6-1148 Alcohol/Contaminants-in-Fuel Diagnosis .... 6-1148 EVAP Control System Diagnosis .............. 6-1149 Idle Air Control System Diagnosis ............ 6-1152

Repair Instructions .................................... 6-1155 PCM ReplacemenVProgramming .............. 6-1155 CKP System Variation Learn Procedure ... 6-1157 ECT Sensor Replacement ........................ 6-1158 MAF Sensor Replacement ........................ 6-1159 MAP Sensor Replacement ....................... 6-1160 H02S Replacement .................................. 6-1161 TP Sensor Replacement .......................... 6-1163 IAT Sensor Replacement ......................... 6-1165 IAC Valve Replacement ........................... 6-1166

68 Table of .contents Accelerator Controls Cable

Replacement ........................................ ~.6-1169 Accelerator Controls Pedal

Replacement ....... . ........ : ............. .......... 6-1170 Throttle Body Assembly Replacement ...... 6-1171 Throttle .Body Air Inlet Screen

Replacement .......................................... 6-1174 Fuel Pressure Relief Procedure ................. 6-1175 Quick Connect Fitting(s) Service

(Metal Collar) ........................................ 6-1175 Quick Connect Fitting(s) Service

(Plastic Collar) ...................................... 6~1178 In-Line Fuel Filter Replacement ................ 6-1181 Fuel Tank Draining Procedure .................. 6-1182 Fuel Tank Replacement ........................... 6-1183 Fuel Tank Vent Valve Replacement ......... 6-1188 Fuel Tank Pressure Sensor

Replacement ......................................... 6-1189 Fuel Sender Assembly Replacement ........ 6-1190 Fuel Sender Assembly Service ........... ; .... ,6-1191 Fuel Pump Strainer Replacemerir ............. 6~ 1192 Fuel Level Sensor Replacement ............... 6-1193 Fuel Hose/Pipes Replacement

(Filter to Engine) ................ ; .................. 6-1194 Fuel Hose/Pipes Replacement

(Filter to Tank) :6-1200 Fuel Hose/Pipes Replacement

(Engine Compartment) .......................... 6-1201 Fuel System Cleaning .................... , ......... 6-1203 Fuel Rail Assembly Replacement ............. 6-1204 Fuel Pressure Regulator Replacement ...... 6-1206 Fuel Injector Replacement ........................ 6-1207 Fuel Pump Relay Replacement .... , ........... 6-1208 Engine Oil Pressure Sensor/Switch

Replacement ......................................... 6-1209 EVAP Canister Purge Solenoid Valve

Replacement ................................ , ........ 6-1209 EVAP Vent Valve Replacement ................. 6-1210 EVAP Canister Replacement .................... 6-1211 Ignition Control Module Replacement ....... 6-1212 Ignition Coil(s) Replacement ..................... 6-1212 Crankshaft Position Sensor

Replacement ......................................... 6-1213 Camshaft Position Sensor Replacement ... 6-1214 Knock Sensor Replacement .......... ; .......... 6-1215 EGR Valve Replacement .......................... 6-1217 Clutch Anticipate Switch Replacement ...... 6-1218 Crankcase Ventilation System

Inspection ............................................. 6-1219 Air Cleaner Element Replacement ............ 6-1219 Air Cleaner Intake Duct Replacement ....... 6-1220

Description and Operation ........................ 6-1221 Powertrain Control Module Description ..... 6-1221 Information Sensors/Switches

Description ................................. , .......... 6-1221 PCM Controlled Warning Lamps

Description ............................................ 6-1226 PCM Controlled Air Conditioning

Description ............................................ 6-1226

Engine Engine Cooling Fan Description -

Electric ................................................. 6-1227 Fuel Supply Component Description ......... 6-1227 Fuel Metering Modes of Operation ........... 6-1231 Fuel Metering System Component (

Description ............................................ 6-1232 EV AP Control System Operation

Description ... ' ......................................... 6-1234 Electronic Ignition System Description ...... 6-1236 Knock Sensor System Description ............ 6-1240 EGR System Description .......................... 6-1242 Crankcase Ventilation System .

Description ............................................ 6-1243 Air Intake System Description ................... 6-1243

Special Tools and Equipment ................... 6-1244 Engine Controls - 5.7L .............................. 6-1247

Specifications ............................................ 6-124 7 Temperature vs Resistance ...................... 6-1247 Fastener Tightening Specifications ............ 6-124 7 Engine Scan Tool Data List ..................... 6-1248 Engine Sqm Tool Data Definitions ........... 6-1251 OTC List ................................................... 6-1256 Fuel System Specifications ....................... 6-1259 GM SPO Group Numbers ........................ 6-1260

Schematic and Routing Diagrams ............ 6-1261 Emission Hose Routing Diagram .............. 6-1261

Engine Controls Schematic References .... 6-1262 Engine Controls Schematic Icons ............. 6-1262 Engine Controls Schematics ..................... 6-1263

Component Locator ................................... 6-1281 Engine Controls Components ................... 6-1281 Engine Controls Component Views ........... 6-1286 PCM Connector End Views ...................... 6-1300 Engine Controls Connector End Views ..... 6-1304

Diagnostic Information and Procedures ... 6-1312 A Powertrain On Board Diagnostic

(OBD) System Check ............................ 6-1312 Data Link Connector Diagnosis ................ 6-1315 Engine Cranks but Does Not Run ............ 6-1318 Ignition Relay Diagnosis ........................... 6-1321 Fuel Pump Relay Circuit Diagnosis .......... 6-1324 Fuel System Diagnosis ............................. 6-1329 OTC P0101 Mass Air Flow (MAF)

Sensor Performance ............................. 6-1334 OTC P0102 Mass Air Flow (MAF)

Sensor Circuit Low Frequency .............. 6-1339 OTC P0103 Mass Air Flow (MAF)

Sensor Circuit High Frequency .............. 6-1344 OTC P0107 Manifold Absolute Pressure

(MAP) Sensor Circuit Low Voltage ........ 6-1348 OTC P0108 Manifold Absolute Pressure

(MAP) Sensor Circuit High Voltage ....... 6-1352 OTC P0112 Intake Air Temperature

(IAT) Sensor Circuit Low Voltage .......... 6-1356 OTC P0113 Intake Air Temperature (

(IAT) Sensor Circuit High Voltage ......... 6-1359 OTC P0117 Engine Coolant Temperature

(ECT) Sensor Circuit Low Voltage ........ 6-1363

Engine OTC P0118 Engine Coolant Ter:nperature

(ECT) Sensor Circuit High Voltage ........ 6-1366 OTC P0121 TP Sensor Circuit

Insufficient Activity ............ ; .................... 6-1370 OTC P0122 Throttle Position (TP)

Sensor Circuit Low Voltage ................... 6-1374 OTC P0123 Throttle Position, (TP)

Sensor Circuit High Voltage .................. 6-1378 OTC P0125 Engine Coolant Temperature

(ECT) Excessive Time to Closed Loop Fuel Control ................................. 6-1382

OTC P0131 H02S Circuit Low Voltage Bank 1 Sensor 1 .................................. 6-1385

OTC P0132 H02S. Circuit High Voltage Bank 1 Sensor 1 ., ................................. 6-1389

OTC P0133 H02S Slow Response Bank 1 Sensor 1 .................................. 6-1393

OTC P0134 H02S Circuit Insufficient Activity Bank 1 Sensor .......................... 6-1397

OTC P0135 H02S Heater Performance Bank 1 Sensor 1 .................................. 6-1401

OTC P0137 H02S Circuit Low Voltage Bank1 Sensor 2 .................................... 6-1405

OTC P0138 H02S Circuit High Voltage Bank 1 Sensor 2 .................................. 6-1409

OTC P0140 H02S Circuit Insufficient Activity Bank 1 Sensor 2 ...................... 6-1413


DTC P0151 H02S Circuit Low Voltage Bank 2 Sensdr 1 .................................. 6-1421

DTC P0152 H02S Circuit High Voltage Bank 2 Sensor 1 .................................. 6-1425

OTC P0153 H02S Slow Response Bank 2 Sensor 1 .................................. 6-1429



OTC P0157 H02S Circuit Low Voltage Bank 2 Sensor 2 .................................. 6-1440

OTC P0158 H02S Circuit High Voltage Bank 2 Sensor 2 .................................. 6-1444



OTC P0171 Fuel Trim System Lean Bank 1 ................................................. 6-1456

OTC P0172 Fuel Trim System Rich Bank 1 ................................................. 6-1459

OTC P0174 Fuel Trim System Lean Bank 2 ................................................. 6-1462

OTC P0175 Fuel Trim System Rich Bank 2 ................................................. 6-1465

OTC P0230 Fuel Pump Relay Control Circuit ................................................... 6-1468

OTC P0300 Engine Misfire Detected ......... 6-1472 OTC P0325 Knock Sensor System ........... 6-1478 OTC P0327 Knock Sensor (KS) 1

Circuit ................................................... 6-1479

Table of Contents 6-9 OTC P0332 Knock Sensor Circuit Rear .... 6-1483 OTC P0335 Crankshaft Position (CKP)

Sensor Circuit ....................................... 6-1487 OTC P0336 Crankshaft Position (CKP)

Sensor Performance ............................. 6-1491 OTC P0341 Camshaft Position (CMP)

Sensor Performance ............................. 6-1494 OTC P0342 Camshaft Position (CMP)

Sensor Circuit Low Voltage ................... 6-1497 OTC P0343 Camshaft Position (CMP)

Sensor Circuit High Voltage .................. 6-1503 OTC P0351 Ignition Coil 1 Control

Circuit ................................................... 6-1509 OTC P0352 Ignition Coil 2 Control







Circuit ................................................... 6-1537 OTC P0401 Exhaust Gas Recirculation

(EGR) Flow Insufficient .... , .................... 6-1541 OTC P0404 Exhaust Gas Recirculation

(EGR) Open Position Performance ........ 6-1543 OTC P0405 Exhaust Gas Recirculation

(EGR) Position Sensor Circuit Low Voltage ................................................. 6-1547

OTC P0410 Secondary Air Injection (AIR) System ........................................ 6-1551

OTC P0412 Secondary Air Injection (AIR) Solenoid Relay Control Circuit ..... 6-1557

OTC P0418 Secondary Air Injection (AIR) Pump Relay Control Circuit .......... 6-1561

OTC P0420 Catalyst System Low Efficiency Bank 1 .................................. 6-1565

OTC P0430 Catalyst System Low Efficiency Bank 2 .................................. 6-1567

OTC P0440 Evaporative Emission (EVAP) System ..................................... 6-1569

OTC P0442 Evaporative Emission (EVAP) Control System Small Leak Detected ............................................... 6-157 4

OTC P0443 Evaporative Emission (EVAP) Purge Solenoid Control Circuit ................................................... 6-1579

OTC P0446 Evaporative Emission (EVAP) Vent System Performance ........ 6-1583

OTC P0449 Evaporative Emission (EVAP) Vent Solenoid Control Circuit .... 6-1587

OTC P0452 Fuel Tank Pressure Sensor Circuit Low Voltage ................... 6-1591

OTC P0453 Fuel Tank Pressure Sensor Circuit High Voltage .................. 6-1596

OTC P0461 Fuel Level Sensor Performance ......................................... 6-1600

6-10 Table of Contents OTC P0462 Fuel Level Sensor

Circuit Low Voltage ............................... 6-1603 OTC P0463 Fuel Level Sensor Circuit

High Voltage ......................................... 6-1606 OTC P0480 Cooling Fan Relay 1

Control Circuit ....................................... 6-161 O OTC P0481 Cooling Fan Relay 2 and 3

Control Circuit ....................................... 6-1613 OTC P0500 Vehicle Speed Sensor

(VSS) Circuit , ........................................ 6-1616 OTC P0506 Idle Speed Low ..................... 6-1619 OTC P0507 Idle Speed High .................... 6-1622 OTC P0530 Air Conditioning (A/C)

Refrigerant Pressure Sensor Circuit ...... 6-1625 OTC P0562 System Voltage Low .............. 6-1628 OTC P0563 System Voltage High ............. 6-1631 OTC P0601Control Module Read Only

Memory (ROM) ..................................... 6-1633 OTC P0602 Control Module Not

Programmed ......................................... 6-1634 OTC P0604 Control Module Random

Access Memory (RAM) ......................... 6-1635 OTC P0608 Vehicle Speed Output

Circuit ................................................... 6-1636 OTC P0650 Malfunction Indicator Lamp

(MIL) Control Circuit .............................. 6-1639 OTC P0654 Engine Speed Output

Circuit ................................................... 6-1642 OTC P0656 Fuel Level Output Circuit ....... 6-1645 OTC P0801 Reverse Inhibit Solenoid

Control Circuit ....................................... 6-1649 OTC P0803 Skip Shift Solenoid Control

Circuit ................................................... 6-1653 OTC P0804 Skip Shift Lamp Control

Circuit ................................................... 6-1656 OTC P1111 Intake Air Temperature (IAT}

Sensor Circuit Intermittent High Voltage ................................................. 6-1659

OTC P1112 Intake Air Temperature (IAT) Sensor Circuit Intermittent Low Voltage ................................................. 6-1662

OTC P1114 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent Low Voltage ................................................. 6-1665

OTC P1115 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage ................................................. 6-1668

OTC P1121 Throttle Position (TP) Sensor Circuit Intermittent High Voltage ................................................. 6-1671

OTC P1122 Throttle Position (TP) Sensor Circuit Intermittent Low Voltage ................................................. 6-167 4

OTC P1133 H02S Insufficient Switching Bank 1 Sensor 1 .................................. 6-1677

OTC P1134 H02S Transition Time Ratio ank 1 Sensor 1 .................................... 6-1681

OTC P1153 H02S Insufficient Switching ank 2 Sensor 1 .................................... 6-1685

OTC P1154 H02S Transition Time Ratio Bank 2 Sensor 1 .................................. 6-1689

OTC P1258 Engine Coolant Overtemperature - Protection Mode

Engine

Active ................................................... 6-1693 OTC P1336 Crankshaft Position (CKP)

System Variation Not Learned .............. 6-1695 OTC P1380 Misfire Detected - Rough

Road Data Not Available ...................... 6-1698 OTC P1404 EGR Exhaust Gas

Recirculation (EGR) Closed Position Performance ......................................... 6-1699

OTC P1415 Secondary Air Injection (Al R) System Bank 1 ............................ 6-1703

OTC P1416 Secondary Air Injection (AIR} System Bank 2 ............................ 6-1706

OTC P1441 Evaporative Emission (EVAP) System Flow During Non-Purge ............................................ 6-1709

OTC P1539 Air Conditioning (A/C) Clutch Feedback Circuit High Voltage ... 6-1711

OTC P1545 A/C Compressor Clutch Relay Control Circuit ............................. 6-1714

OTC P1546 Air Conditioning (A/C) Clutch Feedback Circuit Low Voltage .... 6-1718

OTC P1626 Theft Deterrent Fuel Enable Signal Lost ................................ 6-1721

OTC P1635 5 Volt Reference 1 Circuit ..... 6-1724 OTC P1639 5 Volt Reference 2 Circuit ..... 6-1727 Symptoms ................................................ 6-1733 Hard Start ................................................ 6-1734 Surges/Chuggles ...................................... 6-1735 Lack of

98 service manual volume 3 of 3 mechanical

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