compressed natural gas supplement guide · compressed natural gas(cng). it will not operate on...

Chevrolet/GMC Express/Savana CNG Compressed Natural Gas Supplement(GMNA-Localizing-U.S/Canada-9159237) - 2016 - CRC - 5/2/16

Contents Introduction . . . . . . . . . . . . . . . . . . . . . . 2

Instruments and Controls . . . . . . . . 3

Driving and Operating . . . . . . . . . . . 5

Vehicle Care . . . . . . . . . . . . . . . . . . . . 14

Service and Maintenance . . . . . . . 19

Technical Data . . . . . . . . . . . . . . . . . 27

Index . . . . . . . . . . . . . . . . . . . . . 29


2 Introduction

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 EXPRESS

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

Propriétaires Canadiens

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

Helm, IncorporatedAttention: Customer Service47911 Halyard DrivePlymouth, MI 48170USA

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. 23337648 A First Printing ©2016 General Motors LLC. All Rights Reserved.


Instruments and Controls 3

Instruments andControls

Warning Lights, Gauges, andIndicatorsFuel Gauge . . . . . . . . . . . . . . . . . . . . . 3Malfunction Indicator Lamp(Check Engine Light) . . . . . . . . . . 4

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 psig) and emptyat approximately 2 758 kPa(400 psig).

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 0 7.


4 Instruments and Controls

Malfunction IndicatorLamp (Check EngineLight)

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 5

Driving andOperating

Driving InformationVehicle Load Limits . . . . . . . . . . . . . 5

Starting and OperatingStarting the Engine . . . . . . . . . . . . . . 5

FuelFuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Filling the Tank . . . . . . . . . . . . . . . . . . 7Fuel System Leak . . . . . . . . . . . . . . 11

Trailer TowingTrailer Towing . . . . . . . . . . . . . . . . . . 13

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 makeit even more difficult or impossibleto start at high altitudes if


6 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.

Caution

Using below standard CNG fuelquality may cause damage to theCNG fuel system. Use only CNGfuel meeting recommended CNGfuel standards.

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 psig).Gas should never be smelled and ahissing 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 SystemLeak 0 11.



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.

{ Warning

When refueling in temperaturesbelow −20 °C (−4 °F), CNG mayleak from the fuel tank valvepressure relief port if the fast fillmethod is used. You or otherscould be injured if leaking CNG isignited. Fill the vehicle with thetime fill method or refuel when thetemperature is above −20 °C(−4 °F).

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 time filling. Fast fillingis normally used in fuel stations fornatural gas vehicles. It takes aboutsix to eight minutes to fill up the fueltanks. Time 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 psig) and P36 (yellowhandle) for 24 800 kPa (3,600 psig).

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 atime 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 reliefdevices 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 outdoor open areato remove some 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 is present, donot fill above the pressure level thatcorresponds to the lowest ambienttemperature expected duringfueling.

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 gasolinerefueling. Put the vehicle into

P (Park) and turn off the engineprior to refueling. Remove the dustcap 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 continuesto leak, have an authorized dealerinspect the sealing O-ring in the fillvalve. It may be missing, damaged,or worn. Spare O-rings designed for



use 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-ringfrom the groove in the fill valve.A small flat-blade or pointedtool can 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 out

(Continued)

Warning (Continued)

of 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.

In Case of a CNG Leak

If a CNG fuel leak is suspected, seeFuel System Leak 0 11.



Fuel System Leak

{ Warning

Fuel vapors and fuel fires burnviolently and can cause injury ordeath.

. Keep all smoking materialsand sources of ignition awayfrom the fuel systemcomponents.

. CNG is non-toxic but thevapors are lighter than airand can cause oxygendepletion if they areenclosed in a confinedspace. Make sure there isadequate ventilation anduse extreme caution if aleak is suspected.

{ 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 an outdooropen area and apply theparking 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 manualshutoff valve. Do not removethis 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.


14 Vehicle Care

Vehicle Care

General InformationAccessories andModifications . . . . . . . . . . . . . . . . . 14

Vehicle ChecksDoing Your OwnService Work . . . . . . . . . . . . . . . . . 15

Fuel System Components . . . . . 15

Wheels and TiresTire Changing . . . . . . . . . . . . . . . . . 17

Jump StartingJump Starting - NorthAmerica . . . . . . . . . . . . . . . . . . . . . . 17

Towing the VehicleTowing the Vehicle . . . . . . . . . . . . . 18

Appearance CareExterior Care . . . . . . . . . . . . . . . . . . 18

General Information

Accessories andModificationsDo not add accessories to the CNGor gasoline circuits. Do not cut orsplice any wire harness to addaccessories.

Adding 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,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.


Vehicle Care 15

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.

Fuel System Components

{ Warning

Tampering with, or improperlymaintaining the high-pressure fuelsystem can cause a dangerouscondition in which serious injury

(Continued)

Warning (Continued)

or 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 orreplace any original CNGcomponents or parts with thosespecified for a gasoline-poweredvehicle. Improper parts orcomponents can damage the

vehicle 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.

There is an identifying bluediamond-shaped CNG label on therear of the vehicle. Do not removethis label. This label is necessary forcompliance with NFPA-52 or CSAB109 regulations. Driving withoutthis label may violate the laws orregulations in some jurisdictions.Replacement labels can be orderedfrom your dealer.


16 Vehicle Care

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.

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.


Vehicle Care 17

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

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 if the vehicle isinvolved in an accident. This valve,when turned, will stop CNG flow tothe engine. If the vehicle has justbeen in storage and it will not start,verify that the valve is turned to theon position.

Wheels and Tires

Tire ChangingThis vehicle does not have a sparetire. See Towing the Vehicle 0 18.

Jump Starting

Jump Starting - NorthAmerica

{ 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 0 15.

See “Jump Starting - North America”in the owner manual.


18 Vehicle Care

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.

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 19

Service andMaintenance

Maintenance ScheduleMaintenance Schedule . . . . . . . . 19

Maintenance RecordsNatural Gas Vehicle (CNG)Service Records . . . . . . . . . . . . . . 22

MaintenanceScheduleThis 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.

{ 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.

The CNG system requires avisual inspection of the CNGfuel tank(s) by a CSAInternational-certified inspector orauthorized GM dealer. For moreinformation, see your dealer or seehttp://www.csagroup.org/.


20 Service and Maintenance

{ Warning

The CNG fuel system and tank(s)must be inspected by a certifiedinspector if the vehicle is involvedin a motor vehicle accident or fire.

The CNG fuel tank(s) must bereplaced 15 years aftermanufacture. The expiration date ofthe fuel tank(s) and instructions forinspections are on a label on thefuel tank(s). Have an authorized GMdealer replace the fuel tank(s). Donot reuse old fuel tank(s).

{ Warning

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



Maintenance ScheduleAdditional RequiredServices

12000km/7,500mi

24000km/15,000mi

36000km/22,500mi

48000km/30,000mi

60000km/37,500mi

72000km/45,000mi

84000km/52,500mi

96000km/60,000mi

108000km/67,500mi

120000km/75,000mi

132000km/82,500mi

144000km/90,000mi

156000km/97,500mi

168000km/105,000mi

180000km/112,500mi

192000km/120,000mi

204000km/127,500mi

216000km/135,000mi

228000km/142,500mi

240000km/150,000mi

Visually inspect each CNG connection for leaks. @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @

Visually inspect CNG fill receptacle for adamaged or missing O-ring. @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @

Visually inspect CNG hoses and lines for leaks ordamage. @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @

Visually inspect manual shutoff valve for leaks ordamage. @ @ @ @ @ @ @ @ @ @

Drain high pressure filter. @ @ @ @ @ @ @ @ @ @

Replace high pressure filter element. @ @

Visually inspect CNG tank shields for damage orcontact to fuel tank(s). (1)

Visually inspect fuel tank valves for leaks ordamage. (1)

Visual inspection of CNG tank(s) by certifiedinspector for damage and deterioration. (1)

Footnotes — Maintenance Schedule Additional Required Services

(1) These inspections must occur every 36 months or 58 000 km/36,000 mi, whichever comes first.



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:






Technical Data 27

Technical Data

Vehicle DataCapacities andSpecifications . . . . . . . . . . . . . . . . 28


28 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 29

Index AAccessories and Modifications . . . 14Appearance CareExterior . . . . . . . . . . . . . . . . . . . . . . . . .18

BBattery - North America . . . . . . . . . . 17

CCalifornia Proposition65 Warning . . . . . . . . . . . . . . . . . . . . . 17

Canadian Vehicle Owners . . . . . . . . 2Capacities and Specifications . . . . 28CheckMalfunction Indicator EngineLight . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

CleaningExterior Care . . . . . . . . . . . . . . . . . . .18

ComponentsFuel System . . . . . . . . . . . . . . . . . . . .15

DDrivingVehicle Load Limits . . . . . . . . . . . . . . 5

EEngineCheck and Service EngineSoon Light . . . . . . . . . . . . . . . . . . . . . 4

Starting . . . . . . . . . . . . . . . . . . . . . . . . . . 5

FFlat TireChanging . . . . . . . . . . . . . . . . . . . . . . .17

Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Filling the Tank . . . . . . . . . . . . . . . . . . 7Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Fuel System Components . . . . . . . 15Fuel System Leak . . . . . . . . . . . . . . . 11

GGaugesFuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

IIntroduction . . . . . . . . . . . . . . . . . . . . . . . 2

JJump Starting - North America . . . 17

LLampsMalfunction Indicator . . . . . . . . . . . . 4

LeakFuel System . . . . . . . . . . . . . . . . . . . . 11

MMaintenance Schedule . . . . . . . . . . 19Malfunction Indicator Lamp . . . . . . . 4


30 Index

NNatural GasVehicle Service Records . . . . . . . .22

Natural Gas Vehicle (CNG)Service Records . . . . . . . . . . . . . . . 22

PProposition 65 Warning,California . . . . . . . . . . . . . . . . . . . . . . . 17

SServiceAccessories andModifications . . . . . . . . . . . . . . . . . .14

Doing Your Own Work . . . . . . . . . .15Engine Soon Light . . . . . . . . . . . . . . . 4

Service and MaintenanceNatural Gas Vehicle (CNG)Service Records . . . . . . . . . . . . . .22

Specifications and Capacities . . . . 28Starting the Engine . . . . . . . . . . . . . . . 5SupplementUsing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

TTiresChanging . . . . . . . . . . . . . . . . . . . . . . .17

TowingTrailer . . . . . . . . . . . . . . . . . . . . . . . . . .13Vehicle . . . . . . . . . . . . . . . . . . . . . . . . .18

TrailerTowing . . . . . . . . . . . . . . . . . . . . . . . . . .13

UUsing This Supplement . . . . . . . . . . . 2

VVehicleCanadian Owners . . . . . . . . . . . . . . . 2Load Limits . . . . . . . . . . . . . . . . . . . . . . 5Towing . . . . . . . . . . . . . . . . . . . . . . . . . .18

compressed natural gas supplement guide · compressed natural gas(cng). it will not operate on...

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