wheel alignment CHEVROLET ASTRO 1997 2.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine Tire Inspection and Rotation
Tires should be rotated every 6,000 to 8,000 miles
( 10 000 to 1 3 000 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. When rotating your tires, always
use the
correct rotation
pattern shown here.
Don’t include the compact spare tire in your
tire rotation.
After the tires have been rotated, adjust the front and
rear inflation pressures
as shown on the
Certificatioflire label. Make certain that all wheel nuts
are properly tightened. See “Wheel Nut Torque” in
the Index.
Rust or dirt on a wheel, or on the parts to which
it is fastened, can make wheel nuts become loose
after
a time. The wheel could come off and cause
an accident. When you change
a wheel, remove
any rust or dirt from places where the wheel
attaches to the vehicle. In an emergency,
you can
use a cloth
or a paper towel to do this; but be
sure to use
a scraper or wire brush later, if you
need to, to get all the rust or dirt off. (See
“Changing
a Flat Tire” in the Index.)
~ 6-45

Downloaded from www.Manualslib.com manuals search engine Traction -- A, B, C
The traction grades, from highest to lowest, are A, €3, and
C, and they represent the tire’s ability to stop on wet
pavement as measured under controlled conditions on
specified government test surfaces
of asphalt and concrete.
A tire marked C may have poor traction performance.
Warning: The traction grade assigned to this tire is based
on braking (straightahead) traction tests and does not
include cornering (turning) traction.
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
GM dealer if any
of these conditions exist.
Your dealer will know the kind of wheel you need.
6-48

Downloaded from www.Manualslib.com manuals search engine Section 9 Index
Accessory Power Outlet ......................... 2-52
Add-on Equipment
............................. 4-30
AirBag
....................................... 1-27
Adding Equipment
............................ 1-33
How Does
it Restrain .......................... 1-3 1
How it Works ................................ 1-29
Location
.................................... 1-29
Readiness Light
......................... 1.28. 2.61
Servicing
................................... 1-32
What Makes
it Intlate .......................... 1-30
What Will
You See After it Inflates ............... 1-3 I
When Should it Inflate ......................... 1-30
AirCleanerFilter
............................... 6-19
Air Conditioning Refrigerants
..................... 6-67
Alignment and Balance. Tire
...................... 6-48
All-Wheel Drive
.......................... 2.22. 6.23
Aluminum Wheels. Cleaning
...................... 6-57
Antenna. Fixed
................................. 3-30
Antifreeze
..................................... 6-25
Anti-Lock
Brakes
...................................... 4-7
Brake System Warning Light
................ 2.64. 4.7
Anti.Theft. Radio
.............................. 3-26
Appearance Care
............................... 6-50
Appearance Care Materials
....................... 6-59
Arbitration Program
.............................. 8-9
Ashtrays
...................................... 2-50
Air
Conditioning
................................ 3-5 Audio Equipment. Adding
........................ 3-28
Audio Systems
.................................. 3-9
Automatic Transmission Check
........................... 7-44
Transmission Fluid
............................ 6-20
Transmission Operation
........................ 2-19
Front
....................................... 6-24
LockingRear
................................ 2-22
Rear
....................................... 6-25
Battery
...................................... 6-36
Jump Starting
................................. 5-3
Replacement. Remote Keyless Entry
............... 2-9
Wdrnings
.................................... 5-3
BBB Auto Line
................................. 8-9
Better Business Bureau Mediation
................... 8-9
Brake
Adjustment
.................................. 6-35
Fluid
....................................... 6-32
Master Cylinder
.............................. 6-32
Parking
..................................... 2-23
PedalTravel
................................. 6-35
Replacing System Parts
........................ 6-35
System Warning Light
......................... 2-63
Trailer ...................................... 4-35
Transmission Shift Interlock Check
............... 7-45
Wear
....................................... 6-34
Axle
9-1

Downloaded from www.Manualslib.com manuals search engine Shoulder Belt Height Adjuster ..................... 1-20
SIR .......................................... 1-27
Skidding
...................................... 4-13
Sound Equipment. Adding
........................ 3-28
Spare Tire. Compact
............................. 5-35
Specifications and Capacities
...................... 6-67
Speech Impaired. Customer Assistance
............... 8-4
Speedometer
................................... 2-59
Stains. Cleaning
................................ 6-52
Starter Switch Check
............................ 7-45
Starting Your Engine
............................ 2- 17
Steam
........................................ 5-13
In Emergencies ............................... 4- IO
Power ....................................... 4-9
Tips
......................................... 4-9
Wheel. Tilt
.................................. 2-31
Storage Compartments
........................... 2-42
Storage. Vehicle
................................ 6-36
Stuck: In Sand. Mud. Ice or Snow
.................. 5-36
Sunvisors
.................................... 2-51
Sunglasses Storage
.............................. 2-48
Supplemental Inflatable Restraint
.................. 1-27
Symbols. Vehicle .................................. v
Steering ....................................... 4-9
Taillamp Bulb Replacement
...................... 6-41
Tape Player Care
............................... 3-29
Temperature & Compass Display .................. 2-47 Theft
......................................... 2-14
Theft-Deterrent Feature
.......................... 3-26
Thermostat
.................................... 6-30
Third Gear
.................................... 2-21
Tilt Steering Wheel
............................. 2-31
Time. Setting
................................... 3-9
Tire Chains
.................................... 6-50
TireLoading
................................... 4-28
Tire-Loading Information Label
................... 4-28
Tires
......................................... 6-43
Alignment and Balance
........................ 6-48
BuyingNew
................................. 6-46
Chains
..................................... 6-50
ChangingaFlat
.............................. 5-23
Cleaning
.................................... 6-57
Compact Spare
............................... 5-35
Inflation
.................................... 6-44
Inflation Check
............................... 7-43
Inspection and Rotation
........................ 6-45
Loading .................................... 4-28
Pressure
.................................... 6-44
Temperature
................................. 6-48
Traction
.................................... 6-48
Treadwear
................................... 6-47
Uniform Quality Grading
....................... 6-47
Wear Indicators
.............................. 6-46
Wheel Replacement
........................... 6-48
When It’s Time for New
....................... 6-46
THEFTLOCK
................................ 3-26
9-9

Downloaded from www.Manualslib.com manuals search engine ...
TopStrap ..................................... 1-54
Torque Lock
................................... 2-26
Torque. Wheel
Nut ......................... 5.32. 6.66
Towing a Trailer
................................ 4-31
Towing Your Vehicle
............................. 5-7
Trailer
Brakes
..................................... 4-35
Driving on Grades
............................ 4-37
Driving with
................................. 4-35
Hitches
..................................... 4-34
Maintenance When Towing
..................... 4-38
Parking on Hills
.............................. 4-38
Safety Chains
................................ 4-34
Tongueweight
............................... 4-33
Total Weight on Tires
.......................... 4-34
Towing
..................................... 4-31
Turnsignals
................................. 4-37
Weight
..................................... 4-32
Wiring Harness
............................... 4-39
Transmission Fluid. Automatic
.................... 6-20
Transmitters. Keyless Entry
........................ 2-7
Transportation. Courtesy .......................... 8-8
Trip Odometer ................................. 2-59
TTY Users
...................................... 8-4
Turn Signal and Lane Change Signals
............... 2-32
Turn SignaIMultifunction Lever
................... 2-3 1
Turn Signals When Towing a Trailer ................ 4-37
Two-way Manual Seat
........................... 1-2
Underbody Maintenance ........................ 6-58
Underhood Electrical Center
...................... 6-64
Universal Transmitter
............................ 2-53
Vehicle Control
...................................... 4-6
Damage Warnings
.............................. iv
Dimensions ................................. 6-68
Identification Number
......................... 6-60
Loading
.................................... 4-28
Storage
..................................... 6-36
Visor Vanity Mirrors
............................ 2-52
Visors. Sun
.................................... 2-51
Voltmeter
..................................... 2-62
Ventilation
System
............................... 3-6
warning Devices
............................... 5-2
Warning Lights. Gages and Indicators
............... 2-60
Warranty Information
............................ 8-10
Washer Fluid. Windshield ........................ 6-31
Washing Your Vehicle
........................... 6-56
Weatherstrips
.................................. 6-55
Nut Torque ............................. 5-32. 6-66
Replacement
................................. 6-48
Wheel
Alignment
.................................. 6-48
Wrench
..................................... 5-25
9-10