wheel alignment PONTIAC FIREBIRD 1998 Owners Manual

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 Pa).
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 6,000 to 8,000 miles
( 10 000 to 13 000 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’s Time for New Tires”
and
“Wheel Replacement” later in this section 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 “Scheduled
Maintenance Services’’
in the Index for scheduled
rotation intervals.
6-46

Temperature -- A, B, C
The temperature grades are A (the highest), B, and C,
representing the tire’s resistance to the generation of
heat and its ability to dissipate heat when tested under
controlled conditions on a specified indoor laboratory
test wheel. Sustained high temperature can cause the
material
of the tire to degenerate and reduce tire life,
and excessive temperature can lead to sudden tire
failure. The grade
C corresponds to a level of
performance which all passenger car tires must meet under the Federal Motor Vehicle Safety Standard
No. 109. Grades B and A represent higher levels of
performance on the laboratory test wheel than the
minimum required by law.
Warning: The temperature grade
for this tire is
established for a tire that is properly inflated and not
overloaded. Excessive speed, underinflation, or
excessive loading, either separately or in combination,
can cause heat buildup and possible tire failure.
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
Pontiac model.
6-51

Section 9 Index
Accessory Plug ............................... 2-62
Adding Equipment to the Outside of Your Vehicle ...... 6-3
Air Bag ....................................... 1-22
How Does it Restrain .......................... 1-26
How it Works ................................ 1-24
Location .................................... 1-24
Readiness Light ......................... 1.23. 2.81
Servicing ................................... 1-27
What Makes it Inflate .......................... 1-25
What Will You See After it Inflates ............... 1-26
When Should it Inflate ......................... 1-25
Aircleaner .................................... 6-18
Air Conditioning ................................ 3-3
Air Conditioning Refrigerants ..................... 6-70
Aircontrol ..................................... 3-2
Air Filter Replacement ........................... 6- 19
Alarm. Content Theft-Deterrent System ............. 2- 14
AlarmPanicMode ............................... 2-8
Alignment and Balance. Tire ...................... 6-51
Aluminum Wheels. Cleaning ...................... 6-59
Antenna. Power ................................ 3-22
Antifreeze ..................................... 6-27
Anti-Lock
Brake System Warning Light
................ 2.82. 4.7
Anti-Theft, Radio .............................. 3-17
Appearance Care ............................... 6-53
Appearance Care Materials Chart .................. 6-61
Arbitration Program .............. ............ 8-9
Ashtray and Lighter ........................... 2-60
Audio Equipment, Adding ........................ 3-20
Audio Steering Wheel Controls .................... 3-19
Audio Systems .................................. 3-7
Auto-Down Window ............................ 2-45
Automatic Overdrive ............................ 2-32
Automatic Transmission
Check
...................................... 7-33
Fluid ....................................... 6-20
Operation ................................... 2-30
Park Mechanism Check ........................ 7-35
Shifting ..................................... 2-30
StartingYourEngine .......................... 2-26
Brakes ...................................... 4-7
Axle, Limited-Slip Rear ......................... 2-44
Axle, Rear .................................... 6-27
9-1

THEFTLOCK TM (Theft-Deterrent Feature) ........... 3- 17
Thermostat .................................... 6-3 1
Third Gear. Automatic Transmission ................ 2-32
Tilt Steering Wheel
............................. 2-46
Tire. Storing Tire and Tools
....................... 5-38
Tire Chains
.................................... 6-52
TireLoading ................................... 4-30
Tire-Loading Information Label
................... 4-30
Tires
......................................... 6-44
Alignment and Balance
........................ 6-51
Buying New ................................. 6-49
Chains
..................................... 6-52
Changing a Flat
.............................. 5-27
Cleaning
.................................... 6-59
Compact Spare
............................... 5-40
Inflation
.................................... 6-45
Inflation Check
............................... 7-32
Inspection and Rotation
........................ 6-46
Loading
.................................... 4-30
Pressure
.................................... 6-45
Temperature
................................. 6-5 1
Traction .................................... 6-50
Treadwear
................................... 6-50
Uniform Quality Grading
....................... 6-50
Wear Indicators
.............................. 6-48
Wheel Replacement
........................... 6-5 1
When It’s Time for New ....................... 6-48
TopStrap
..................................... 1-39
TorqueLock
................................... 2-40 Torque. Wheel Nut
....................... 5.37. 6.68
TowingaTrailer
................................ 4-32
Towing Your Vehicle
............................. 5-8
Control System ................................ 4-8
Backing Up with
............................. 4-36
Driving on Grades
............................ 4-37
Engine Cooling When Towing
................... 4-38
Following Distance
........................... 4-36
Hitches ..................................... 4-35
If You Do Decide To Pull
A ..................... 4-33
Maintenance When Towing
..................... 4-38
MakingTurns
................................ 4-37
ParkingonHills
.............................. 4-38
Traction
Control
Off Button ............................. 4-10
Control System Warning Light
.............. 2.83. 4.9
Trailer
Brakes
..................................... 4-35
Drivingwith
................................. 4-36
Passing with
................................. 4-36
Safety Chains
................................ 4-35
Total Weight on Tires
.......................... 4-35
Tongueweight
............................... 4-34
Towing
..................................... 4-32
Turnsignals
................................. 4-37
Weight
..................................... 4-33
Automatic ................................... 6-20
Manual
..................................... 6-24
Transmitters, Remote Keyless Entry
................. 2-6
9-11

Transmitters. Matching to Your Vehicle .............. 2-9
Transmitters. Synchronization ...................... 2-8
Transportation. Courtesy .......................... 8-8
T-Top Sunshades ............................... 2-67
lTYUsers ..................................... 8-5
Turn Signal and Lane Change Indicators ............. 2-47
Turn SignaVMultifunction Lever ................... 2-46
Turn Signals When Towing a Trailer ................ 4-37
Twin Lift-off Roof Panels ........................ 2-62
Tripodometer ................................. 2-79
underbody Flushing Service ..................... 7-35
Underbody Maintenance ......................... 6-60
Underhood Electrical Center ...................... 6-66
Vehicle
Controlofa
.................................. 4-5
Damagewarnings .............................. iv
Dimensions
................................. 6-70
Identification Number ......................... 6-62
Loading .................................... 4-30
Storage ..................................... 6-37
Ventilation System ............................... 3-6
Visor Vanity Mirror ............................. 2-61
Visors. Sun .................................... 2-61
Voltmeter ..................................... 2-8 1 warning
Devices
............................... 5-3
Warning Lights. Gages and Indicators ............... 2-79
Warranty Information ............................ 8-10
Washer Fluid. Windshield .................. 2-49. 6-32
Washing Your Vehicle ........................... 6-57
Weatherstrips .................................. 6-57
wheel
Alignment .................................. 6-51
Nut Torque ............................. 5.37. 6.68
Replacement ................................. 6-51
Wrench ..................................... 5-30
Windows ..................................... 2-45
Manual ..................................... 2-45
Power ...................................... 2-45
Windshield Washer ............................. 2-49
Fluid .................................. 2.49. 6.32
Fluid Level Check ............................ 7-32
Windshield Wipers .............................. 2-48
Blade Replacement ........................... 6-42
Fuses ...................................... 6-63
Winter Driving ................................. 4-25
Wiper Blade Check ............................. 7-33
Wiring. Headlamp .............................. 6-63
WreckerTowing ................................. 5-8
Wrench. Wheel. ................................ 5-30
9-12