width PONTIAC GRAND PRIX 1999 Owners Manual

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1-20
Q:What's wrong with this?
A:The belt is twisted across the body.
CAUTION:
You can be seriously injured by a twisted belt. In
a crash, you wouldn't have the full width of the
belt to spread impact forces. If a belt is twisted,
make it straight so it can work properly, or ask
your dealer to fix it.

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6-49 Wheel Alignment and Tire Balance
The wheels on your vehicle were aligned and balanced
carefully at the factory to give you the longest tire life
and best overall performance.
Scheduled wheel alignment and wheel balancing are not
needed. However, if you notice unusual tire wear or your
vehicle pulling one way or the other, the alignment may need
to be reset. If you notice your vehicle vibrating when driving
on a smooth road, your wheels may need to be rebalanced.
Wheel Replacement
Replace any wheel that is bent, cracked, or badly rusted
or corroded. If wheel nuts keep coming loose, the wheel,
wheel bolts and wheel nuts should be replaced. If the
wheel leaks air, replace it (except some aluminum
wheels, which can sometimes be repaired). See your
dealer if any of these conditions exist.
Your dealer will know the kind of wheel you need.
Each new wheel should have the same load
-carrying
capacity, diameter, width, offset and be mounted the
same way as the one it replaces.
If you need to replace any of your wheels, wheel bolts
or wheel nuts, replace them only with new GM original
equipment parts. This way, you will be sure to have the
right wheel, wheel bolts and wheel nuts for your vehicle.
CAUTION:
Using the wrong replacement wheels, wheel bolts
or wheel nuts on your vehicle can be dangerous.
It could affect the braking and handling of your
vehicle, make your tires lose air and make you
lose control. You could have a collision in which
you or others could be injured. Always use the
correct wheel, wheel bolts and wheel nuts
for replacement.
NOTICE:
The wrong wheel can also cause problems with
bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper
height, vehicle ground clearance and tire or tire
chain clearance to the body and chassis.
See ªChanging a Flat Tireº in the Index for
more information.

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6-68
Air Conditioning Refrigerants
Not all air conditioning refrigerants are the same. If the
air conditioning system in your vehicle needs
refrigerant, be sure the proper refrigerant is used. If
you're not sure, ask your dealer.
Normal Maintenance
Replacement Parts
Engine Air Cleaner/Filter
All Engines z4508572 or A1096C. . . . . . . . . . . . . . . .
Battery
3100 (Code M) 600 CCA. . . . . . . . . . . . . . . . . . . . . . .
3800 (Code K) 690 CCA. . . . . . . . . . . . . . . . . . . . . . .
3800 Supercharged (Code 1) 770 CCA. . . . . . . . . . . .
Engine Oil Filter
All Engines AC Type PF47. . . . . . . . . . . . . . . . . . . . .
PCV Valve
All Engines CV892C. . . . . . . . . . . . . . . . . . . . . . . . . .
Radiator Cap
All Engines AC Type RC27. . . . . . . . . . . . . . . . . . . . . Spark Plugs
3100 (Code M) AC Type 41
-940 . . . . . . . . . . . . . . . . .
Gap: 0.060 inches (1.52 cm)
3800 (Code K) AC Type 41
-921 . . . . . . . . . . . . . . . . .
Gap: 0.060 inches (1.52 cm)
3800 Supercharged
(Code 1) AC Type 41
-921 or NGK . . . . . . . . . . . .
Type PTR4B
-15
Gap: 0.060 inches (1.52 cm)
Wiper Blades
Type Hook. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Length 20 inches (50.8 cm). . . . . . . . . . . . . . . . . . . . .
Vehicle Dimensions
Wheelbase 110.5 inches (280.7 cm). . . . . . . . . . . . . .
Tread Width
Front 62.0 inches (157.5 cm). . . . . . . . . . . . . . . . . .
Rear 61.5 inches (156.1 cm). . . . . . . . . . . . . . . . . . .
Length 196.5 inches (499.1 cm). . . . . . . . . . . . . . . . .
Width 72.7 inches (184.5 cm). . . . . . . . . . . . . . . . . . .
Height 54.7 inches (139.0 cm). . . . . . . . . . . . . . . . . . .