2003 PONTIAC GRAND PRIX fuel cap

While refueling, let the fuel
cap hang by the tether
below the fuel
fill opening.
To remove the fuel cap, turn it slowly to the left
(counterclockwise). The fuel cap has a spring in it;
if you let go of the cap too soon, it will spring back to
the right.
If you get fuel on yourself and then something
ignites
it, you could be badly burned. Fuel can
spray out on you
if you open the fuel cap too
quickly. 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. Clean fuel from painted
surfaces as soon as possible. See Cleaning the Outside
of Your Vehicle on page 5-97. When filling the tank
do not overfill by squeezing in much more fuel after the
pump shuts
off.
5-8

When you put the fuel cap back on, turn it to the right
(clockwise) until you hear a clicking sound. Make
sure you fully install the cap. 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. See Malfunction Indicator Lamp on
page
3-32.
Notice: If you need a new fuel cap, be sure to get
the right type. Your dealer can get one for you.
If you get the wrong type, it may not fit properly.
This may cause your malfunction indicator lamp to
light and may damage your fuel tank and emissions
system. See “Malfunction Indicator Lamp” in
the Index.
Filling a Portable Fuel Container
~ .-ver fil. - portable fL-- cc..-ainer 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 fill a container while it is inside a
vehicle,
in a vehicle’s trunk, pickup bed or
on any surface other than the ground.
Bring the fill nozzle in contact with the
inside of the fill opening before operating
the nozzle. Contact should be maintained
until the filling is complete.
Don’t smoke while pumping gasoline.
5-9

Bad wear
0 Bad handling
Bad fuel economy
If your tires have too much air (overinflation),
you can get the following:
Unusual wear
Bad handling
Rough ride
Needless damage from road hazards
When to Check
Check your tires once a month or more.
Don’t forget your compact spare tire. It should be
at
60 psi (420 kPa).
How to Check
Use a good quality pocket-type gage to check tire
pressure. You can’t tell
if your tires are properly inflated
simply by looking at them. Radial tires may look
properly inflated even when they’re underinflated.
Be sure to put the valve caps back on the valve stems.
They help prevent leaks by keeping out dirt and
moisture.
Tire Inspection and Rotation
Tires should be rotated every 7,500 miles (1 2 500 km).
Any time you notice unusual wear, rotate your tires
as soon as possible and check wheel alignment.
Also
check for damaged tires or wheels. See When It Is Time
for New Tires on page
5-70 and Wheel Replacement
on page 5-73 for more information.
The purpose of regular rotation is to achieve more
uniform wear for all tires on the vehicle. The first rotation
is the most important. See “Part A: Scheduled
Maintenance Services,’’ in Section
6, for scheduled
rotation intervals.
1
When rotating your tires, always use the correct rotation
pattern shown here.
5-69

Capacities and Specifications (cont’d)
T
Application
Engine Oil with Filter
31 00 V6 (Code J)
3800 V6 (Code K)
3800 V6 Supercharged (Code 1)
Capacities
English
4.3 quarts
4.3 quarts
4.3 quarts
Metric
4.1 L
4.1 L
4.1 L
Fuel Tank
All capacities are approximate. When adding fluid, be sure to fill to the appropriate level, as recommended in this
manual. Recheck fluid level after filling. See
Pad D: Recommended Nuids and Lubricants on page 6-75 for more
information.
I 17.2 gallons 65 L
Engine Specifications
Wheel Nut
Engine Torque
Firing Order
Spark
Plug Gap VIN Code
3100 V6 J .060 inch 100 ft Ib
191
CID (3.1L LG8) (1.52mm) 1-2-3-4-5-6
(140 Nmm )
1-6-5-4-3-2
5-1 03

Part C: Periodic Maintenance
Inspections
Listed in this part are inspections and services which
should be performed at least twice a year (for instance,
each spring and fall).
You should let your dealer’s
service department
or other qualified service center do
these
jobs. Make sure any necessary repairs are
completed at once.
Proper procedures to perform these services may be
found in a service manual. See Service Publications
Ordering lnformation
on page 7- 10.
Steering, Suspension and Front
Drive Axle Boot and Seal Inspection
Inspect the front and rear suspension and steering
system for damaged, loose
or missing parts, signs of
wear or lack of lubrication. Inspect the power steering
lines and hoses for proper hook-up, binding, leaks,
cracks, chafing, etc. Clean and then inspect the drive
axle boot seals for damage, tears or leakage. Replace
seals
if necessary.
Exhaust System Inspection
Inspect the complete exhaust system. Inspect the body
near the exhaust system. Look for broken, damaged,
missing or out-of-position parts as well as open seams,
holes, loose connections or other conditions which
could cause a heat build-up in the floor pan or could let
exhaust fumes into the vehicle. See Engine Exhaust
on page
2-3 1.
Fuel System Inspection
Inspect the complete fuel system for damage or leaks.
Engine Cooling System Inspection
Inspect the hoses and have them replaced if they
are cracked, swollen or deteriorated. Inspect all pipes,
fittings and clamps; replace as needed. Clean the
outside of the radiator and air conditioning condenser.
To help ensure proper operation, a pressure test of
the cooling system and pressure cap is recommended
at least once a year.
6-1 3

Backglass Antenna .......................................... 3-59
Backing Up .................................................... 4-41
Battery .......................................................... 5-52
Battery Replacement ......................................... 2-6
Battery Run-Down Protection ............................ 3-1 5
Before Leaving on a Long Trip ......................... 4-24
Body Lubrication Service .......................... 6-10
Brake
Parking
...................................................... 2-27
System Inspection ....................................... 6-1 4
System Warning Light .................................. 3-28
Brake Fluid .................................................... 5-49
Brake Wear ................................................... 5-51
Brakes .......................................................... 5-49
Braking ........................................................... 4-6
Break-In, New Vehicle ..................................... 2-19
Bulb Replacement ........................................... 5-60
Center High-Mounted Stoplamp (CHMSL) ........ 5-63
Front Turn Signal and Sidemarker Lamps ....... 5-62
Halogen Bulbs ............................................ 5-60
Headlamp Aiming ........................................ 5-59
Headlamps ................................................. 5-60
Replacement Bulbs ...................................... 5-66
Taillamps, Sidemarker and Back-up Lamps ..... 5-64
Buying New Tires ........................................... 5-71
Braking in Emergencies ..................................... 4-9
C
California Fuel .................................................. 5-6
Canada ........................................................... 7-4
Canadian Owners ................................................ ii
Canadian Roadside Assistance ........................... 7-6
Capacities and Specifications .......................... 5-1 02
Carbon Monoxide ................... 4-27, 4-37, 2-1 1, 2-31
Care of
Safety Belts ................................................ 5-91
Care of the HUD ............................................ 3-17
Care of Your
Cassette Tape Player
................................... 3-58
CD Player .................................................. 3-59
Cassette Tape Messages ................................. 3-47
Cassette Tape Player Service ............................. 6-9
Center Console Storage Area ........................... 2-40
Center High-Mounted Stoplamp (CHMSL) ........... 5-63
Center Passenger Position, Safety Belts ............. 1-21
Chains, Tires .................................................. 5-75
Check
Checking Coolant
............................................ 5-31
Checking Things Under the Hood ...................... 5-10
Checking Your Restraint Systems ...................... 1-58
CDS .......................................................... 3-59
CD Adapter Kits ............................................. 3-48
Charging System Light .................................... 3-27
Engine Light ............................................... 3-32
Checking Engine Oil ........................................ 5-18
Chemical Paint Spotting ................................... 5-94
2