compressed natural gas manual - chevrolet and indicators fuel gauge when the ignition is on, the...

2k15_misc_express_savana_CNG_2015CNGSUPLA.ai

(Modern Bridge - Level 2 / #23321109)

Spine = Saddle Stitch

(Image set @ 60% Transparency

Color = Black

Date = 04/14/14

2015

2015CNGSUPL A

Express/SavanaCNG Compressed NaturalGas Supplement

Black plate (1,1)Express/Savana CNG Compressed Natural Gas Supplement (GMNA-Localiz-ing-U.S./Canada-7707479) - 2015 - crc - 5/6/14

2015 Express/Savana CNG Compressed Natural GasSupplement M

Instruments and Controls . . . . 5-1Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . 5-1

Driving and Operating . . . . . . . . 9-1Driving Information . . . . . . . . . . . . . 9-1Starting and Operating . . . . . . . . . 9-1Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2Trailer Towing . . . . . . . . . . . . . . . . . . 9-9

Vehicle Care . . . . . . . . . . . . . . . . . 10-1General Information . . . . . . . . . . 10-1Vehicle Checks . . . . . . . . . . . . . . . 10-2Wheels and Tires . . . . . . . . . . . . . 10-5Jump Starting . . . . . . . . . . . . . . . . 10-5Towing the Vehicle . . . . . . . . . . . 10-5Appearance Care . . . . . . . . . . . . . 10-6

Service and Maintenance . . . 11-1Maintenance Schedule . . . . . . . 11-1Maintenance Records . . . . . . . . 11-3

Technical Data . . . . . . . . . . . . . . . 12-1Vehicle Data . . . . . . . . . . . . . . . . . . 12-2

Index . . . . . . . . . . . . . . . . . . . . . i-1


ii Introduction

The names, logos, emblems,slogans, vehicle model names, andvehicle body designs appearing inthis supplement including, but notlimited to, GM, the GM logo,CHEVROLET, the CHEVROLETEmblem, GMC, the GMC TruckEmblem, SAVANA, and EXPRESSare trademarks and/or servicemarks of General Motors LLC, itssubsidiaries, affiliates, or licensors.

This vehicle only operates onCompressed Natural Gas (CNG).It will not operate on gasoline,diesel, or Liquefied PetroleumGas (LPG) fuel.

Keep this manual in the vehicle forquick reference.

Canadian Vehicle Owners

Propriétaires Canadiens

A French language manual can beobtained from your dealer, atwww.helminc.com, or from:

On peut obtenir un exemplaire dece guide en français auprès duconcessionnaire ou à l'adressesavant:

Helm, IncorporatedAttention: Customer Service47911 Halyard DrivePlymouth, MI 48170

Using this SupplementThis supplement containsinformation specific to the uniquecomponents of the vehicle. It doesnot explain everything you need toknow about the vehicle. Read thissupplement along with the ownermanual to learn about the vehicle'sfeatures and controls.

Index

A good place to look for what youneed is the Index in back of thissupplement. It is an alphabetical listof what is in the supplement, andthe page number where you willfind it.

Litho in U.S.A.Part No. 2015CNGSUPL A First Printing ©2014 General Motors LLC. All Rights Reserved.


Instruments and Controls 5-1

Instruments andControls

Warning Lights, Gauges, andIndicatorsFuel Gauge . . . . . . . . . . . . . . . . . . . 5-1Malfunction Indicator Lamp . . . 5-2

Warning Lights,Gauges, andIndicators

Fuel Gauge

When the ignition is on, the fuelgauge indicates about how muchfuel is left in the vehicle fuel tank.

An arrow on the fuel gaugeindicates the side of the vehicle thefuel door is on.

The fuel gauge has been calibratedto display full at approximately24 800 kPa (3,600 psi) and empty atapproximately 2 758 kPa (400 psi).

When the low fuel warning indicatorflashes, fill the tank as soon aspossible.

Compressed Natural Gas (CNG)fuel gauge readings are affected bychanges in fuel temperature andfuel pressure.

See Filling the Tank on page 9-3.


5-2 Instruments and Controls

MalfunctionIndicator Lamp

This vehicle has been specificallydesigned to illuminate this indicatorwhen emissions exceed acceptablelevels while operating on naturalgas fuel.

The malfunction indicator lampcomes on to indicate that there is aproblem and service is required.Malfunctions often will be indicatedby the system before any problem isapparent. This system is alsodesigned to assist the servicetechnician in correctly diagnosingany malfunction.

{ Caution

If the vehicle is continually drivenwith this light on, the emissioncontrols might not work as well,the vehicle fuel economy mightnot be as good, and the enginemight not run as smoothly. Thiscould lead to costly repairs thatmight not be covered by thevehicle warranty.

This light should come on, as acheck to show you it is working,when the ignition is on and theengine is not running.

See the owner manual for moreinformation.


Driving and Operating 9-1

Driving andOperating

Driving InformationVehicle Load Limits . . . . . . . . . . . 9-1

Starting and OperatingStarting the Engine . . . . . . . . . . . 9-1

FuelFuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2Filling the Tank . . . . . . . . . . . . . . . . 9-3Fuel System Leak . . . . . . . . . . . . . 9-7

Trailer TowingTrailer Towing . . . . . . . . . . . . . . . . . 9-9

Driving Information

Vehicle Load Limits

{ Caution

Loose items stored in the cargoarea may damage the fuel tankand fuel system components.Secure all items in the cargo areato avoid shifting and any damageto the fuel tank and fuel tankcomponents.

Starting andOperating

Starting the EngineStarting the engine in a CNGvehicle is similar to starting agasoline engine. See “Starting theEngine” in the owner manual.

Cold Weather Starting

If the outside temperature is below−20°C (−4°F), the engine may beharder to start, or may not start untilthe temperature increases.

Using the engine heater may makeit easier to start. See “EngineHeater” in the owner manual.

High Altitude Cold Starting

An engine is harder to start in coldweather. The thinner air foundabove 1 600 m (5,000 ft) also makesthe vehicle harder to start. Theunique properties of CNG make iteven more difficult or impossible tostart at high altitudes if


9-2 Driving and Operating

temperatures drop below −16°C(4°F). When starting the vehicle incold weather at high altitudes:. Use the engine heater. See

“Engine Heater” in the ownermanual.

. Turn off all electricalaccessories.

. Do not hold the ignition switch inSTART for more than15 seconds.

{ Caution

If you add electrical parts oraccessories, you could changethe way the engine operates. Anyresulting damage would not becovered by the vehicle warranty.See “Add-On ElectricalEquipment” in the owner manual.

FuelThis vehicle is designed to operateon Compressed Natural Gas (CNG).

The general marketplace fuel qualityof Compressed Natural Gas formotor vehicles in the state ofCalifornia should be in compliancewith Title 13 California Code ofRegulations, Section 2292.5. Theremaining regions of North Americado not employ regulated fuel qualitystandards for general marketplacevehicle usage; however, CNG isavailable at both private and publicfilling stations. We recommend theuse of CNG that meets or exceedsSAE J1616 specifications for fuelcomposition and cleanliness.

The main component of CNG ismethane, a highly flammable,colorless gas. An odorant has beenadded for detection through smell.The smell is similar to that of rotteneggs. The CNG in the vehicle isstored under high pressure(maximum 24 800 kPa/3,600 psi).Gas should never be smelled and a



hissing sound should not be heard,unless refueling is being done.If gas is smelled or a hissing soundis heard at any other time, shutdown the vehicle and have itserviced. It may be possible to hearthe fuel flowing while the engine isrunning if standing close to thepipework or various fuel systemcomponents (regulator, filter). This isnormal and should not be confusedwith a hissing sound at fittings thatmay indicate a fuel leak. Follow theinstructions under Fuel System Leakon page 9-7.

Filling the Tank

{ Warning

CNG is flammable and highlyexplosive. You could be killed orseriously injured if leaking naturalgas is ignited. If you suspect aleak, do not start the engine ordrive the vehicle. Have thevehicle immediately towed,inspected, and repaired by anauthorized GM dealer.

Before filling the fuel tanks, turn offthe engine.

The fill valve is behind a hinged fueldoor on the driver side.

There is an identifying bluediamond-shaped CNG label on theright rear cargo door. Do not removethis label — it is necessary forcompliance with NFPA-52regulations and insuring the vehicle.Driving without this label may violatethe laws or regulations in somestates. Replacement labels can beordered from your dealer.

Refueling Procedure

There are two methods of refueling:fast filling or slow filling. Fast fillingis normally used in fuel stations fornatural gas vehicles. It takes aboutsix to eight minutes to fill up the fueltanks. Slow filling is done with avehicle refueling appliance or atime-fill post provided by the fleetoperator. Refueling time varies,based on the refueling system used.Consult with the refueling stationattendant or system provider.



Always observe all safetyrecommendations and operatinginstructions on the refuelingequipment. When refueling, use afuel fill nozzle that complies withANSI/CSA-NGV 1-2006 standards.Nozzles are designed according totheir maximum fill pressure: P30(blue handle) for 20 684 kPa(3,000 psi) and P36 (yellow handle)for 24 800 kPa (3,600 psi).

A fuel nozzle less than 7.6 cm (3 in)long may be difficult to disengageafter dispensing CNG.

During fueling, CNG needs to bedelivered to the vehicle at theappropriate pressure in relationshipto the ambient temperature. Thiscan be done automatically by atemperature compensation systemon the CNG fuel dispenser ormanually by stopping the CNG fill ata recommended pressure. GMrecommends that customers useCNG fueling stations that have atemperature compensation systemwhenever possible. Check with thefuel station. If one is not available,

see the temperature compensationchart that follows in this section tochoose the appropriate fill pressurefor the ambient temperature. Inaddition, fill only to the pressurelevel for the lowest ambienttemperature anticipated duringfueling.

Leaving a vehicle connected to aslow fill station can cause the tankto be filled to a higher pressure thanrecommended, especially whenoutside temperatures fluctuate.Disconnect the vehicle from the fillstation as soon as it is full, unlessan auto shutoff feature is used.

{ Warning

If CNG tanks are filled to a higherpressure than recommended andthen exposed to a much higherambient temperatureenvironment, expansion of thegas caused by the temperaturechange may cause pressure relief

(Continued)

Warning (Continued)

devices on the vehicle CNGtank(s) to release gas, asdesigned. If an ignition source ispresent, this could create a risk offire or explosion. If there is anypossibility that the tank has beenover pressurized, take steps torelieve the excess pressure, suchas by driving or running thevehicle in an open area to removesome fuel.

Make sure that your CNG vehicle isproperly maintained and repaired toavoid elevated temperaturessurrounding the tank, since elevatedtemperatures in the area of the tankcould also raise the CNG pressurein the tank.

Consult materials available fromNGVAmerica - http://www.ngvc.organd the Clean VehicleEducation Foundation -



http://www.cleanvehicle.org onCNG fueling stations for moreinformation.

Ambient Temperature / MaximumCNG Fill Pressure CompensationChart

To avoid the risk of fire or explosionif an ignition source were present,do not fill above the pressure levelthat corresponds to the lowestambient temperature expectedduring fueling.

Service Pressure 24 800 kPa(3,600 psig) at 21 C (70 F).

The refueling fill valve on thevehicle is in the same location aswas provided originally for gasoline

refueling. Put the vehicle intoP (Park) and turn off the engineprior to refueling. Remove the dust



cap from the receptacle, clean offany dirt or debris on the receptacle,and follow the refueling instructionson the pump or provided by thestation operator.

Fill Valve O-Ring

If fuel or vapor is heard or seenleaking from the nozzle-fill valveconnection, stop refuelingimmediately. Dirt or other debrismay be preventing a positiveconnection. Turn off the refuelingdispenser, disconnect the nozzle,reconnect it to the fill valve, andbegin refueling again. If it continues

to leak, have an authorized dealerinspect the sealing O-ring in the fillvalve. It may be missing, damaged,or worn. Spare O-rings designed foruse with CNG are included with thevehicle. See an authorized GMdealer for additional O-rings.

{ Warning

Attempting to fill a CNG fuelsystem that has a missing ordamaged O‐ring is dangerous.Natural gas can leak. If thenatural gas is ignited, you orothers could be injured. Replacethe O‐ring before filling the tank.

To replace the fill valve O-ring:

1. Carefully remove the O-ring fromthe groove in the fill valve.A small flat-blade or pointed toolcan be used.

2. Make sure the groove is cleanand free of dirt and debris.

3. Install the new O-ring in thegroove in the fill valve. Makesure the O-ring is properlyseated in the groove.

Refueling will stop automaticallywhen the tank is full. To disconnectthe vehicle from the refuelingstation, remove the nozzle from thefill valve. A hissing sound may beheard as a small amount of naturalgas escapes. This is normal.

If dirt or other debris is adhering tothe inside of the fuel fill valve, gasmay leak out after refueling. If morefuel is needed, repeat the refuelingprocedure.

Put the fill valve dust cap onsecurely and close the fuelfiller door.

Pressure Relief Devices

The CNG tank has pressure reliefdevices that are designed to releasepressure if the CNG tank isoverheated or over pressurized.



{ Warning

If the pressure relief devicesrelease CNG while the vehicle isbeing operated, the CNG tankswill be emptied and it will run outof fuel. If a release of CNG isdetected, move the vehicle to asafe stopping location. A loudrushing noise may be heard whenthe CNG is released.

If a pressure relief devicereleases CNG while the vehicle isnot running, it is possible that notall tanks will be emptied. Do notstart the vehicle.

Have the vehicle towed to anauthorized GM dealer for service.

Fuel System Leak

{ Warning

If you smell a persistent naturalgas odor or hear a continualhissing sound, there could be anatural gas leak. If the natural gasis ignited, you or others could beinjured. Do not start the engine ordrive the vehicle. Have thevehicle towed to an authorizedGM dealer for service.

A slight natural gas odor may bedetected for a few moments afterrefueling. This is normal. You shouldnot be able to smell natural gas atany other time. If you do, or if youhear a hissing sound, the fuelsystem may have a leak.

If natural gas is smelled or a hissingsound is heard:

1. Park the vehicle in awell-ventilated area and applythe parking brake. Keep heat,sparks, and flame away. Openall the vehicle doors forventilation.

2. Turn the ignition to LOCK/OFF.



3. The manual shutoff valve is onthe inner side of the driver sideframe rail halfway between thefront and rear tires.

A label is on the outside of thevehicle above the manual shutoffvalve. Do not remove this label.

Turn the lever one-quarter turnclockwise to turn off.

Do not drive the vehicle. The vehicleshould be towed to an authorizedGM dealer.



Trailer Towing

{ Warning

The trailer hitch protects the CNGtank in a crash and from roadhazards. Damage may result in arupture or explosion of the CNGtank. You or others could beinjured or even killed. If the trailerhitch must be removed for anyreason, e.g., tank inspection orvehicle repair, always reinstall thetrailer hitch before operating thevehicle.

The compressed natural gas systemadds approximately 363 kg (800 lb)of weight to the vehicle. This mustbe included when determining themaximum load and trailer towingcapacity for the vehicle as describedin the owner manual.



2 NOTES


Vehicle Care 10-1

Vehicle Care

General InformationAccessories andModifications . . . . . . . . . . . . . . . 10-1

Vehicle Storage . . . . . . . . . . . . . . 10-2

Vehicle ChecksDoing Your OwnService Work . . . . . . . . . . . . . . . 10-2

Fuel System Components . . . 10-3

Wheels and TiresTire Changing . . . . . . . . . . . . . . . 10-5

Jump StartingJump Starting . . . . . . . . . . . . . . . . 10-5

Towing the VehicleTowing the Vehicle . . . . . . . . . . . 10-5

Appearance CareExterior Care . . . . . . . . . . . . . . . . 10-6

General Information

Accessories andModificationsAdding accessories or makingmodifications to the vehicle,including to the CNG tank shields,could cause a malfunction ordamage and would not be coveredby the vehicle warranty. The CNGfuel tanks under the vehicle areprotected by tank shields. If thevehicle has a CNG fuel tank in thecargo area, it is covered with ashield.

{ Warning

To help avoid damage to the CNGtanks and to reduce the risk ofexplosion, tank shields must bepresent. Do not attachaccessories, such as racks orbins, to the shield. Do not drill,

(Continued)

Warning (Continued)

modify, or use shields as a worksurface. Do not use fire nearshields or tanks.

If a CNG tank needs service orrepair, have only a qualifiedtechnician perform the work. See“Accessories and Modifications” inthe owner manual.


10-2 Vehicle Care

Vehicle StorageIn addition to vehicle storageprocedures outlined in the ownermanual, the following should bedone with the vehicle in the event itwill not be driven for extendedperiods of time:. The manual shutoff valve is on

the inner side of the driver sideframe rail, halfway between thefront and rear tires.


Turn the lever one-quarter turnclockwise to turn off.

. If you store the vehicle indoors,it should be parked in awell-ventilated area. Werecommend the installation of anatural gas leak detector at thehighest point of the ceiling.

. After storing the vehicle for anextended period, and beforestarting the engine for the firsttime, open the doors and leavethem open for several minutes.This allows any natural gasvapors that may have collectedin the cargo area to dissipate.

Vehicle Checks

Doing Your OwnService Work

{ Warning

Never try to do your own servicework on the Compressed NaturalGas (CNG) fuel system. The CNGfuel system operates under highpressure. You can be injured andthe vehicle can be damaged ifyou try to do your own servicework. Service and repair of thissystem should only be performedby a qualified dealer.


Vehicle Care 10-3

Fuel System Components

{ Warning

Tampering with, or improperlymaintaining the high-pressure fuelsystem can cause a dangerouscondition in which serious injuryor death may result. Neverattempt to modify the fuel system,and always have the fuel systemrepaired and maintained by aqualified dealer.

CNG fuel system componentsinclude fuel tanks located in thecargo area and under the vehicle,an integrated fuel pressureregulator, in-tank fuel shutoff valves,high pressure fuel lines,electronically controlled multipointfuel injectors, and other equipment.Fuel system components complywith appropriate safety standards.These components have beendesigned and approved for use in aCNG vehicle. Never modify or

replace any original CNGcomponents or parts with thosespecified for a gasoline-poweredvehicle. Improper parts orcomponents can damage thevehicle fuel system and affect thevehicle safety and performance.

Do not modify, tamper with,or perforate the cargo area tankshield. Damage to the fuel systemcan result.

The in-tank fuel shutoff valve iscontrolled by the ignition switch anda solenoid on the high pressureregulator under the vehicle. Whenthe ignition is in LOCK/OFF or ACC/ACCESSORY, the solenoid is offand the valve is closed, shutting offfuel flow to the engine. When theignition is turned to ON/RUN, thesolenoid is on (for three seconds)and the fuel shutoff valve is open.


10-4 Vehicle Care

Manual Shutoff Valve Locate the manual shutoff valve sothat it can be found quickly if it isneeded.

The manual shutoff valve is on theinner side of the driver side framerail halfway between the front andrear tires.


To turn off the valve, turn the leverone-quarter turn clockwise. Turn itcounterclockwise to turn the valveback on.

Turn off the valve if a fuel leak issuspected or the vehicle is involvedin an accident. This valve, whenturned, will stop CNG flow to theengine. If the vehicle has just beenin storage and it will not start, verifythat the valve is turned to the onposition.


Vehicle Care 10-5

Wheels and Tires

Tire ChangingThis vehicle does not have a sparetire. See Towing the Vehicle onpage 10-5.

Jump Starting

{ Warning

If the CNG fuel system has aleak, a spark from the jumpercables could ignite the naturalgas, causing injury or death. Donot jump start the vehicle if yousmell a persistent natural gasodor or hear a continual hissingsound. Close the manual shutoffvalve, and have the vehicle towedto an authorized GM dealer forservice. See Fuel SystemComponents on page 10-3.

See “Jump Starting” in the ownermanual.

Towing the Vehicle

{ Warning

Improperly positioned tow straps,hooks, or chains can damage theCNG fuel system and cause aleak. If leaking gas catches fire, itcould cause injury or death. Toavoid damage, always flatbed ona car carrier.

See the owner manual for moreinformation on towing the disabledvehicle.


10-6 Vehicle Care

Appearance Care

Exterior Care

Finish Damage

{ Warning

Heating the vehicle to above82°C (180°F) may damage theCompressed Natural Gas (CNG)tanks and may cause the fuelpressure relief device to open andrelease CNG. If an ignition sourceis present, this could create a riskof fire or explosion.

CNG tank(s) must be drained bya qualified technician prior to heatcuring a painted body repair.


Service and Maintenance 11-1

Service andMaintenance

Maintenance ScheduleMaintenance Schedule . . . . . . . 11-1

Maintenance RecordsNatural Gas Vehicle (CNG)Service Records . . . . . . . . . . . . 11-3

MaintenanceSchedule

{ Warning

The tank shields protect the CNGtank in a crash and from roadhazards. Removal of the shieldsmay result in tank damage thatcould result in a rupture orpossible explosion of the tank.You or others could be injured oreven killed. If you must remove atank shield for any reason, e.g.,tank inspection or vehicle repair,always reinstall the shield beforeoperating the vehicle.

{ Warning

Keeping a CNG fuel tank inservice after the tank serviceexpiration date is dangerous and

(Continued)

Warning (Continued)

is prohibited by federal law. Thetank may no longer withstand theCNG fuel system operatingpressure. You could be severelyinjured or killed. Take the vehicleto an authorized GM dealer tohave the tank replaced.

See instructions on fuelcontainer for inspection andservice life.

This CNG vehicle is designed forroutine maintenance (fluids, filters,etc.) according to the originalspecifications as provided in theowner manual for gasoline fuelvehicles. See the owner manual formaintenance service intervals andfluid specifications.

See your dealer or other qualifiedrepair facility for required serviceand maintenance. Your dealer hasthe necessary training and parts torepair the vehicle.


11-2 Service and Maintenance

In addition, the CNG systemrequires the following every60 000 km (36,000 mi) or36 months, whichever occurs first:. Visual inspection of the CNG

fuel tanks by a CSAInternational-certified inspectoror authorized GM dealer. Formore information, see yourdealer or see:

http://www.csa-international.org

Have the CNG fuel system andtanks inspected if the vehiclehas been involved in a collisionor fire. The fuel tanks must bereplaced 15 years aftermanufacture. The expirationdate of the fuel tanks is on alabel on the fuel tanks. Have anauthorized GM dealer replacethe fuel tanks. Do not reuse oldfuel tanks.

. Replacement of the coalescentfilter. See your dealer.



Maintenance Records

Natural Gas Vehicle (CNG) Service RecordsVehicle Identification Number (VIN)

CNG Tank Information

Location Size Capacity* Serial # Exp. Date

In Front of Rear Axle254 mm x 1 854 mm

(10 in x 73 in)79.5 L

(21.0 gal)

Behind Rear Axle(Front)

335 mm x 787mm(13 in x 31 in)

51.0 L(13.5 gal)

Behind RearAxle (Rear)

335 mm x 813mm(13 in x 32 in)

54.0 L(14.3 gal)

Interior (If Equipped)391 mm x 991mm

(15 in x 39 in)90.0 L

(23.8 gal)

* Total Container Water Volume



CNG Fuel Tank Inspection Record

Tank Location:

Tank Serial Number: Tank Expiration Date:

Inspection Interval(Mileage or Years)

Inspection Date Inspector Inspector Initials Type of Repair

15 Years N/A N/A N/A Tank Exchanged




Tank Location:







2 NOTES


Technical Data 12-1

Technical Data

Vehicle DataCapacities andSpecifications . . . . . . . . . . . . . . 12-2


12-2 Technical Data

Vehicle Data

Capacities and Specifications

Application Total Capacities

Canada200 Bar @ 15°C

U.S.3,600 psi @ 70°F

CNG Fuel Tank Capacity – 4 Tank Cargo Van ¹ 20.7 GGE 23.1 GGE

CNG Fuel Tank Capacity – 3 Tank Cargo and PassengerVan ¹

13.8 GGE 15.4 GGE

¹ GGE (Gasoline Gallon Equivalent)


INDEX i-1

AAccessories andModifications . . . . . . . . . . . . . . . . . 10-1

Appearance CareExterior . . . . . . . . . . . . . . . . . . . . . . .10-6

BBatteryJump Starting . . . . . . . . . . . . . . . . .10-5

CCanadian Vehicle Owners . . . . . . . . . iiCapacities andSpecifications . . . . . . . . . . . . . . . . 12-2

CheckEngine Light . . . . . . . . . . . . . . . . . . . 5-2

CleaningExterior Care . . . . . . . . . . . . . . . . .10-6

ComponentsFuel System . . . . . . . . . . . . . . . . . .10-3

DDrivingVehicle Load Limits . . . . . . . . . . . . 9-1

EEngineCheck and Service EngineSoon Light . . . . . . . . . . . . . . . . . . . 5-2

Starting . . . . . . . . . . . . . . . . . . . . . . . . 9-1

FFlat TireChanging . . . . . . . . . . . . . . . . . . . . .10-5

Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2Filling the Tank . . . . . . . . . . . . . . . . 9-3Gauge . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Fuel System Components . . . . . 10-3Fuel System Leak . . . . . . . . . . . . . . 9-7

GGaugesFuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

IIntroduction . . . . . . . . . . . . . . . . . . . . . . . . ii

JJump Starting . . . . . . . . . . . . . . . . . . 10-5

LLampsMalfunction Indicator . . . . . . . . . . 5-2

LeakFuel System . . . . . . . . . . . . . . . . . . . 9-7

MMaintenance Schedule . . . . . . . . 11-1Malfunction Indicator Lamp . . . . . 5-2

NNatural GasVehicle Service Records . . . . . . 11-3

Natural Gas Vehicle (CNG)Service Records . . . . . . . . . . . . . 11-3


i-2 INDEX

SServiceAccessories andModifications . . . . . . . . . . . . . . . .10-1

Doing Your Own Work . . . . . . . .10-2Engine Soon Light . . . . . . . . . . . . . 5-2

Service and MaintenanceNatural Gas Vehicle (CNG)Service Records . . . . . . . . . . . . 11-3

Specifications andCapacities . . . . . . . . . . . . . . . . . . . . 12-2

Starting the Engine . . . . . . . . . . . . . 9-1StorageVehicle . . . . . . . . . . . . . . . . . . . . . . .10-2

SupplementUsing . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii

TTiresChanging . . . . . . . . . . . . . . . . . . . . .10-5

TowingTrailer . . . . . . . . . . . . . . . . . . . . . . . . . 9-9Vehicle . . . . . . . . . . . . . . . . . . . . . . .10-5

TrailerTowing . . . . . . . . . . . . . . . . . . . . . . . . . 9-9

UUsing This Supplement . . . . . . . . . . . . ii

VVehicleCanadian Owners . . . . . . . . . . . . . . . iiLoad Limits . . . . . . . . . . . . . . . . . . . . 9-1Towing . . . . . . . . . . . . . . . . . . . . . . . .10-5

Vehicle Storage . . . . . . . . . . . . . . . . 10-2

compressed natural gas manual - chevrolet and indicators fuel gauge when the ignition is on, the...

Documents