2007 CHEVROLET COBALT fuel pump

Here are four things that some owners ask about.
None of these show a problem with your fuel gage:
At the service station, the gas pump shuts off
before the gage reads full.
It takes a little more or less fuel to ll up than
the gage indicated. For example, the gage may
have indicated the tank was half full, but it
actually took a little more or less than half the
tank’s capacity to ll the tank.
The gage moves a little when you turn a corner
or speed up.
The gage doesn’t go back to empty when you
turn off the ignition.
For your fuel tank capacity, seeCapacities and
Specications on page 390.
Boost Gage
If equipped, this gage is located near the driver’s
side of the instrument panel cluster.
This gage indicates vacuum during light to
moderate throttle and boost under heavier throttle.
This gage displays the air pressure level in the
intake manifold before it enters the engine’s
combustion chamber.
This gage is automatically centered at zero every
time the ignition is turned to RUN. Actual vacuum or
boost is displayed from this zero point. Changes in
ambient pressure, such as driving in mountains and
changing weather, will slightly change the zero
reading.
United StatesCanada
180

Filling the Tank
{CAUTION:
Fuel vapor burns violently and a fuel re
can cause bad injuries. To help avoid
injuries to you and others, read and follow
all the instructions on the pump island.
Turn off your engine when you are
refueling. Do not smoke if you are near
fuel or refueling your vehicle. Do not use
cellular phones. Keep sparks, ames, and
smoking materials away from fuel. Do not
leave the fuel pump unattended when
refueling your vehicle. This is against the
law in some places. Do not re-enter the
vehicle while pumping fuel. Keep children
away from the fuel pump; never let
children pump fuel.The tethered fuel cap is located behind a hinged
fuel door on the passenger’s side of the vehicle.
To remove the fuel cap, turn it slowly
counterclockwise. The fuel cap has a spring
in it; if the cap is released too soon, it will spring
back to the right.
285

While refueling, hang the tethered fuel cap from
the hook on the fuel door.
{CAUTION:
Fuel can spray out on you if you open the
fuel cap too quickly. If you spill fuel and
then something ignites it, you could be
badly burned. This spray can happen if
your tank is nearly full, and is more likely
in hot weather. Open the fuel cap slowly
and wait for any hiss noise to stop. Then
unscrew the cap all the way.
Be careful not to spill fuel. Do not top off or overll
the tank and wait a few seconds after you have
nished pumping before removing the nozzle.
Clean fuel from painted surfaces as soon
as possible. SeeWashing Your Vehicle on
page 377.
When replacing the fuel cap, turn it clockwise
until it clicks. Make sure the cap is fully installed.
The diagnostic system can determine if the
fuel cap has been left off or improperly installed.This would allow fuel to evaporate into the
atmosphere. SeeMalfunction Indicator Lamp
on page 174.
The CHECK GAS CAP message will be displayed
on the Driver Information Center (DIC) if the fuel
cap is not properly installed. SeeDIC Warnings and
Messages on page 184for more information.
{CAUTION:
If a re starts while you are refueling,
do not remove the nozzle. Shut off the
ow of fuel by shutting off the pump or by
notifying the station attendant. Leave the
area immediately.
Notice:If you need a new fuel cap, be sure
to get the right type. Your dealer/retailer
can get one for you. If you get the wrong type,
it may not t properly. This may cause your
malfunction indicator lamp to light and
may damage your fuel tank and emissions
system. SeeMalfunction Indicator Lamp
on page 174.
286

Filling a Portable Fuel Container
{CAUTION:
Never ll a portable fuel container while
it is in your vehicle. Static electricity
discharge from the container can ignite the
gasoline vapor. You can be badly burned
and your vehicle damaged if this occurs.
To help avoid injury to you and others:
Dispense gasoline only into approved
containers.
Do not ll a container while it is inside
a vehicle, in a vehicle’s trunk, pickup
bed, or on any surface other than the
ground.
CAUTION: (Continued)
CAUTION: (Continued)

Bring the ll nozzle in contact with
the inside of the ll opening before
operating the nozzle. Contact should
be maintained until the lling is
complete.
Do not smoke while pumping
gasoline.
Do not use a cellular phone while
pumping gasoline.
287

Fuses Usage
COOL FAN 1 Engine Cooling Fan Low Speed
BCM3 Body Control Module 3
BCM2 Body Control Module 2
FOG LAMP Fog Lamps
HORN Horn
RT HI BEAM Passenger’s Side High Beam
LT HI BEAM Driver’s Side High Beam
RT LO BEAM Passenger’s Side Low Beam
LT LO BEAM Driver’s Side Low Beam
DRL Daytime Running Lamps
FUEL PUMP Fuel Pump
EXH Exhaust Emissions
Blank Not Used
INJ Injectors
Blank Not Used
ABS Anti-lock Brake System
PCM/ECMPowertrain Control Module/
Engine Control ModuleFuses Usage
EPS Electric Power Steering
AIR PUMP AIR Pump
PRK LAMP Park Lamps
WPR Windshield Wiper
IP IGN Ignition
A/C CLTCH Air Conditioning Clutch
AIR SOL/
AFTERCOOLAIR Solenoid (L61, LE5),
Aftercooler (L4)
ABS2 Anti-lock Brake System 2
PRK/NEUT Park, Neutral
ECM/TRANS Engine Control Module, Transaxle
BCK UP Back-Up Lamps
TRUNK/
OUTLETTrunk, Accessory Power Outlet
Blank Not Used
Blank Not Used
S BAND/
ONSTARAudio, OnStar
®
ABS3 Anti-lock Brake System 3
388

Fuses Usage
LTR Cigarette Lighter
MIR Mirrors
HTD SEATS Heated Seats
CNSTR VENT Canister Vent
Relays Usage
REAR DEFOG Rear Defogger
COOL FAN2 Engine Cooling Fan 2
WPR HI/LO Windshield Wiper High/Low Speed
CRNK Starter
COOL FAN1 Engine Cooling Fan 1
FUEL PUMP Fuel Pump
Relays Usage
WPR ON/OFF Windshield Wiper On/Off
COOL FANS Engine Cooling Fans
PWR/TRN Powertrain
AIR PUMP AIR Pump
A/C CLTCH Air Conditioning Clutch
AIR SOL/
AFTERCOOLAIR Solenoid (L61, LE5),
Aftercooler (L4)
RUN/CRNK Run, Crank
Misc. Usage
PLR Fuse Puller
389