2016 CHEVROLET EXPRESS CARGO VAN CNG Manual

Chevrolet/GMC Express/Savana CNG Compressed Natural Gas Supplement
(GMNA-Localizing-U.S/Canada-9159237) - 2016 - crc - 6/18/15
16 Vehicle Care
The in-tank fuel shutoff valve is
controlled by the ignition switch and
a solenoid on the high pressure
regulator under the vehicle. When
the ignition is in LOCK/OFF or ACC/
ACCESSORY, the solenoid is off
and the valve is closed, shutting off
fuel flow to the engine. When the
ignition is turned to ON/RUN, the
solenoid is on (for three seconds)
and the fuel shutoff valve is open.Manual Shutoff Valve
Locate the manual shutoff valve so
that it can be found quickly if it is
needed.

Chevrolet/GMC Express/Savana CNG Compressed Natural Gas Supplement
(GMNA-Localizing-U.S/Canada-9159237) - 2016 - crc - 6/18/15
Vehicle Care 17
The manual shutoff valve is on the
inner side of the driver side frame
rail halfway between the front and
rear tires.
A label is on the outside of the
vehicle above the manual shutoff
valve. Do not remove this label.
To turn off the valve, turn the lever
one-quarter turn clockwise. Turn it
counterclockwise to turn the valve
back on.
Turn off the valve if a fuel leak is
suspected or if the vehicle is
involved in an accident. This valve,
when turned, will stop CNG flow to
the engine. If the vehicle has just
been in storage and it will not start,
verify that the valve is turned to the
on position.Wheels and Tires
Tire Changing
This vehicle does not have a spare
tire. SeeTowing the Vehicle 018.
Jump Starting
Jump Starting - North
America
{Warning
If the CNG fuel system has a
leak, a spark from the jumper
cables could ignite the natural
gas, causing injury or death. Do
not jump start the vehicle if you
smell a persistent natural gas
odor or hear a continual hissing
sound. Close the manual shutoff
valve, and have the vehicle towed
to an authorized GM dealer for
service. See Fuel System
Components 015.
See “Jump Starting - North America”
in the owner manual.

Chevrolet/GMC Express/Savana CNG Compressed Natural Gas Supplement
(GMNA-Localizing-U.S/Canada-9159237) - 2016 - crc - 6/18/15
18 Vehicle Care
Towing the Vehicle
{Warning
Improperly positioned tow straps,
hooks, or chains can damage the
CNG fuel system and cause a
leak. If leaking gas catches fire, it
could cause injury or death. To
avoid damage, always flatbed on
a car carrier.
See the owner manual for more
information on towing the disabled
vehicle.
Appearance Care
Exterior Care
Finish Damage
{Warning
Heating the vehicle to above 82 °
C (180 °F) may damage the
Compressed Natural Gas (CNG)
tanks and may cause the fuel
pressure relief device to open and
release CNG. If an ignition source
is present, this could create a risk
of fire or explosion.
CNG tank(s) must be drained by
a qualified technician prior to heat
curing a painted body repair.

Chevrolet/GMC Express/Savana CNG Compressed Natural Gas Supplement
(GMNA-Localizing-U.S/Canada-9159237) - 2016 - crc - 6/22/15
Service and Maintenance 19
Service and
Maintenance
Maintenance Schedule
Maintenance Schedule . . . . . . . . 19
Maintenance Records
Natural Gas Vehicle (CNG)Service Records . . . . . . . . . . . . . . 21
Maintenance
Schedule
{Warning
The tank shields protect the CNG
tank in a crash and from road
hazards. Removal of the shields
may result in tank damage that
could result in a rupture or
possible explosion of the tank.
You or others could be injured or
even killed. If you must remove a
tank shield for any reason, e.g.,
tank inspection or vehicle repair,
always reinstall the shield before
operating the vehicle.
{Warning
Keeping a CNG fuel tank in
service after the tank service
expiration date is dangerous and
is prohibited by federal law. The
tank may no longer withstand the
(Continued)
Warning (Continued)
CNG fuel system operating
pressure. You could be severely
injured or killed. Take the vehicle
to an authorized GM dealer to
have the tank replaced.
See instructions on fuel
container for inspection and
service life.
This CNG vehicle is designed for
routine maintenance (fluids, filters,
etc.) according to the original
specifications as provided in the
owner manual for gasoline fuel
vehicles. See the owner manual for
maintenance service intervals and
fluid specifications.
See your dealer or other qualified
repair facility for required service
and maintenance. Your dealer has
the necessary training and parts to
repair the vehicle.

Chevrolet/GMC Express/Savana CNG Compressed Natural Gas Supplement
(GMNA-Localizing-U.S/Canada-9159237) - 2016 - crc - 6/22/15
20 Service and Maintenance
The flex lines must be inspected
yearly. If there are cuts or corrosion
in the jacket of the flex lines or if the
vehicle has been in an accident, the
flex lines must be replaced.
In addition, the CNG system
requires the following every
60 000 km (37,500 mi) or
36 months, whichever occurs first:
.Visual inspection of the CNG
fuel tanks by a CSA
International-certified inspector
or authorized GM dealer. For
more information, see your
dealer or see:
http://www.csa-international.org
{Warning
The CNG fuel system must be
inspected by a certified inspector
if the vehicle is involved in a
collision or fire. The fuel tanks must be replaced
15 years after manufacture. The
expiration date of the fuel tanks
is on a label on the fuel tanks.
Have an authorized GM dealer
replace the fuel tanks. Do not
reuse old fuel tanks.
. Replacement of the coalescent
filter. See your dealer.

Chevrolet/GMC Express/Savana CNG Compressed Natural Gas Supplement
(GMNA-Localizing-U.S/Canada-9159237) - 2016 - crc - 6/22/15
Service and Maintenance 21
Maintenance Records
Natural Gas Vehicle (CNG) Service Records
Vehicle Identification Number (VIN)CNG Tank Information
Location Size Capacity* Serial #Exp. Date
In Front of Rear Axle 254 mm x 1 854 mm
(10 in x 73 in) 79.5 L
(21.0 gal)
Behind Rear Axle (Front) 335 mm x 787 mm
(13 in x 31 in) 51.0 L
(13.5 gal)
Behind Rear Axle (Rear) 335 mm x 813 mm
(13 in x 32 in) 54.0 L
(14.3 gal)
Interior (If Equipped) 391 mm x 991 mm
(15 in x 39 in) 90.0 L
(23.8 gal)
* Total Container Water Volume

Chevrolet/GMC Express/Savana CNG Compressed Natural Gas Supplement
(GMNA-Localizing-U.S/Canada-9159237) - 2016 - crc - 6/22/15
22 Service and Maintenance
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/AN/AN/ATank Exchanged

Chevrolet/GMC Express/Savana CNG Compressed Natural Gas Supplement
(GMNA-Localizing-U.S/Canada-9159237) - 2016 - crc - 6/22/15
Service and Maintenance 23
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/AN/AN/ATank Exchanged