wheel CHEVROLET CORVETTE 2002 5.G Service Manual

6-47
If you ever replace your tires with those not having
a TPC Spec number, make sure they are the same
size, load range, speed rating and construction type
(bias, bias
-belted or radial) as your original tires.
CAUTION:
Mixing tires could cause you to lose control
while driving. If you mix tires of different sizes
(other than those originally installed on your
vehicle) or types (radial and bias
-belted tires),
the vehicle may not handle properly, and you
could have a crash. Using tires of different sizes
(other than those originally installed on your
vehicle) may also cause damage to your vehicle.
Be sure to use the correct size and type tires on
all four wheels.
If your vehicle is equipped with Extended Mobility
Tires and you feel that winter tires are needed,
see ªExtended Mobility Tiresº in the Index.
CAUTION:
If you use bias-ply tires on your vehicle, the
wheel rim flanges could develop cracks after
many miles of driving. A tire and/or wheel could
fail suddenly, causing a crash. Use only radial
-ply
tires with the wheels on your vehicle.

6-49
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.

6-50 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
clearance to the body and chassis.

6-51
CAUTION:
Rust or dirt on the wheel, or on the parts to
which it is fastened, can make the wheel nuts
become loose after a time. The wheel could come
off and cause a crash. When you change a wheel,
remove any rust or dirt from the places where the
wheel attaches to the vehicle. In an emergency,
you can use a cloth or 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.
CAUTION:
Never use oil or grease on studs or nuts. If you
do, the nuts might come loose. Your wheel could
fall off, causing a crash.
CAUTION:
Incorrect wheel nuts or improperly tightened
wheel nuts can cause the wheel to become loose
and even come off. This could lead to a crash.
Be sure to use the correct wheel nuts. If you have
to replace them, be sure to get new GM original
equipment wheel nuts.
NOTICE:
Improperly tightened wheel nuts can lead to
brake pulsation and rotor damage. To avoid
expensive brake repairs, evenly tighten the wheel
nuts in the proper sequence and to the proper
torque specification.

6-52
Used Replacement Wheels
CAUTION:
Putting a used wheel on your vehicle is dangerous.
You can't know how it's been used or how far it's
been driven. It could fail suddenly and cause a
crash. If you have to replace a wheel, use a new
GM original equipment wheel.
Using the Wheel Lock Key
If you have a Z06, the wheel lock key sits in a small
depression in the trunk rail on the left side, underneath
the carpeting.
If you have a coupe or a convertible, the wheel lock key
sits in a small depression in the trunk rail directly under
the left rear compartment cover.Your vehicle's wheel lock key has a unique registration
number. The registration number is printed on a card
included in your lock nut package. Also on this card is
lost key replacement information. This number is not
recorded by GM or your dealer, so be sure not to lose
this card. You will need the information if you ever lose
your wheel lock key.
If you or someone else is going to remove the wheels on
your vehicle, make sure that the special wheel lock key
is being used to remove the wheel locks.NOTICE:
Your wheel lock key or lock nuts could be
damaged if an air or impact wrench is used
with this key.

6-53 Tire Chains
CAUTION:
Don't use tire chains. There's not enough clearance.
Tire chains used on a vehicle without the proper
amount of clearance can cause damage to the
brakes, suspension or other vehicle parts. The area
damaged by the tire chains could cause you to lose
control of your vehicle and you or others may be
injured in a crash.
Use another type of traction device only if its
manufacturer recommends it for use on your
vehicle and tire size combination and road
conditions. Follow that manufacturer's
instructions. To help avoid damage to your
vehicle, drive slowly, readjust or remove the
device if it's contacting your vehicle, and don't
spin your wheels.
If you do find traction devices that will fit,
install them on the rear tires.
Lifting Your Corvette
CAUTION:
Lifting a vehicle can cause an injury. The vehicle
can slip off the jack and roll over you or other
people. You and they could be badly injured.
Find a level place to lift your vehicle. To help
prevent the vehicle from moving:
1. Set the parking brake firmly.
2. Put an automatic transmission shift lever in
PARK (P), or shift a manual transmission to
FIRST (1) or REVERSE (R).
3. Turn off the engine.
To be even more certain the vehicle won't
move, you can put blocks in front of and
behind the wheels.

6-63
Cleaning Your Convertible Top
Your convertible top should be cleaned often. If you
use an automatic car wash, use one with water jets and
hanging cloths. High pressure car washes may cause
water to enter your vehicle.
For normal hand washing of the top, have your vehicle
in partial shade. Use a mild soap, lukewarm water and a
soft sponge. A chamois or cloth may leave lint on the
top, and a brush can chafe the threads in the top fabric.
Don't use detergents, harsh cleaners, solvents or
bleaching agents. Wet the entire vehicle and wash the
top evenly to avoid spots or rings. Let the soap remain
on the fabric for a few minutes and rinse well.
For an occasional cleaning using GM Convertible Top
Cleaner (GM Part No. 12378520) is recommended to
keep your convertible top looking good. After cleaning,
reseal the surface with GM Water Repellent (GM Part
No. 12378519) to repel water and dirt.To protect the convertible top:

After you wash the vehicle, make sure the top is
completely dry before you lower it.

Don't get any cleaner on the vehicle's painted finish;
it could leave streaks.

If you decide to go through an automatic car wash,
ask the manager if the equipment could damage
your top.
Cleaning Aluminum Wheels
Keep your wheels clean using a soft clean cloth
with mild soap and water. Rinse with clean water.
After rinsing thoroughly, dry with a soft clean towel.
A wax may then be applied.
The surface of these wheels is similar to the painted
surface of your vehicle. Don't use strong soaps,
chemicals, abrasive polishes, abrasive cleaners, cleaners
with acid or abrasive cleaning brushes on them because
you could damage the surface. Do not use chrome polish
on aluminum wheels.
Don't take your vehicle through an automatic car
wash that has silicon carbide tire cleaning brushes.
These brushes can also damage the surface of
these wheels.

6-64
Cleaning Tires
To clean your tires, use a stiff brush with a tire cleaner.
NOTICE:
When applying a tire dressing always take care to
wipe off any overspray or splash from all painted
surfaces on the body or wheels of the vehicle.
Petroleum
-based products may damage the paint
finish and tires.
Finish Damage
Any stone chips, fractures or deep scratches in the finish
should be repaired right away.
Minor chips and scratches can be repaired with touch
-up
materials available from your dealer or other service
outlets. Larger areas of finish damage can be corrected
in your dealer's body and paint shop.
Underbody Maintenance
Chemicals used for ice and snow removal and dust
control can collect on the underbody. If these are
not removed, accelerated corrosion (rust) can occur
on the underbody parts such as fuel lines, frame,
floor pan and exhaust system even though they have
corrosion protection.
At least every spring, flush these materials from the
underbody with plain water. Clean any areas where mud
and other debris can collect. Dirt packed in closed areas
of the frame should be loosened before being flushed.
Your dealer or an underbody car washing system can do
this for you.

6-75
Maxi-Fuse Usage
46 Cooling Fan 2
47 Blank
48 Blank
49 Cooling Fan 1
50 Air Pump
51 Blank
52 Anti
-Lock Brakes
53 Selective Real Time Damping
Electronics
54 Fuse Puller
Replacement Bulbs
High-Beam Headlamp 9005. . . . . . . . . . . . . . . . . . . .
Low
-Beam Headlamp 9006. . . . . . . . . . . . . . . . . . . .
Back
-Up 2057. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Stop/Tail and Turn Signal 3057. . . . . . . . . . . . .
For any bulb replacements or procedures not listed here,
please consult your dealer.
Capacities and Specifications
The following approximate capacities are given in
English and metric conversions.
Please refer to ªRecommended Fluids and Lubricantsº
in the Index for more information.
Automatic Transmission
Drain and Refill 5.0 quarts (4.7 L). . . . . . . . . . . . . .
Overhaul 10.8 quarts (10.2 L). . . . . . . . . . . . . . . . .
Cooling System12.6 quarts (11.9 L) . . . . . . . . . . . . . .
Engine Oil with Filter6.5 quarts (6.1 L) . . . . . . . . .
Fuel Tank18.5 U.S. gallons (70.0 L) . . . . . . . . . . . .
Manual Transmission
(Overhaul)4.1 quarts (3.8 L) . . . . . . . . . . . . . . . . .
Wheel Nut Torque100 lb
-ft (140 N´m) . . . . . . . . . .
All capacities are approximate. When adding, be sure
to fill to the appropriate level, as recommended in this
manual. Recheck fluid level after filling.
Engine Specifications
Type5.7L V8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VIN Engine Code
LS1 G. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LS6 S. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-17
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 ªService and Owner
Publicationsº in the Index.
Steering and Suspension 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.
Tire and Wheel Inspection
Inspect the tires for uneven wear or damage. If there is
irregular or premature wear, check the wheel alignment.
Inspect for damaged wheels.
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 ªEngine Exhaustº
in the Index.
Fuel System Inspection
Inspect the complete fuel system for damage or leaks.