service CHEVROLET CORVETTE 1998 5.G Service Manual

Downloaded from www.Manualslib.com manuals search engine Replacing Brake System Parts
The braking system on a modern vehicle is complex. Its
many parts have to be of top quality and work well
together
if the vehicle is to have really good braking.
Your vehicle was designed and tested with top-quality
GM brake parts. When you replace parts of your braking
system
-- for example, when your brake linings wear
down and you have to have new ones put in
-- be sure
you get new approved GM replacement parts. If you
don’t, your brakes may no longer work properly. For example,
if someone puts in brake linings that are wrong
for your vehicle, the balance between your front and
rear brakes can change
-- for the worse. The braking
performance you’ve come to expect can change
in many
other ways if someone puts in the wrong replacement
brake parts.
Battery
Every new Corvette has a Delco Freedom@ battery. You
never have to add water to one of these. When it’s time f\
or
a new battery, we recommend a Delco Freedom battery.
Get one that has the replacement number shown on the original battery’s label. For battery replacement, see your
dealer or the Corvette Service Manual.
To purchase a
service manual,
see “Service and Owner Publications”
in the Index. After the battery has been
replaced, refer to the “Remote Function Actuation System”
in the Index to resynchronize your transmitter(s).
Vehicle Storage
If you’re not going to drive your vehicle for 25 days
or more, remove the black, negative
(-) cable from
the battery. This will help keep your battery from
running down.
Batteries have acid that can burn you and gas
that can explode.
You can be badly hurt if you
aren’t careful. See “Jump Starting” in the Index
for tips
on working around a battery without
getting hurt.
Contact your dealer to learn how to prepare your vehicle
for longer storage periods.
Also, for your audio system, see “Theft-Deterrent
Feature” in the Index.
6-32

Downloaded from www.Manualslib.com manuals search engine 3. Put the blade assembly pivot in the wiper arm
hook. Pull up until the pivot locking tab locks
in the hook slot.
4. Carefully lower the wiper arm and blade assembly
into the windshield.
Tires
Your new vehicle comes with high-quality tires made by
a leading tire manufacturer. If you ever have questions
about your tire warranty and where to obtain service, see
your Corvette Warranty booklet for details.
A CAUTION:
Poorly maintained and improperly used tires
are dangerous.
0
0
0
Overloading your tires can cause overheating
as a result of too much friction. You could
have an airout and a serious accident.
See
‘Zoading Your Vehicle” in the Index.
Underinflated tires pose the same danger as
overloaded tires. The resulting accident
could cause serious injury. Check all tires
frequently to maintain the recommended
pressure. Tire pressure should be checked
when your tires are cold.
Overinflated tires are more likely to be
cut, punctured or broken by a sudden
impact
-- such as when you hit a pothole.
Keep tires at the recommended pressure.
Worn, old tires can cause accidents.
If your
tread is badly worn, or if your tires have
been damaged, replace them.

Downloaded from www.Manualslib.com manuals search engine Extended Mobility Tires
Your vehicle, when new, had Goodyear Extended
Mobility Tires (EMT). There’s no spare tire, no tire
changing equipment and no place to store a tire in the
vehicle. Extended Mobility Tires perform
so well
without any air that a Tire Pressure Monitor (TPM) is
used to alert you if a tire has lost pressure.
The Tire Pressure Monitor (TPM) has a sensor on
each road wheel that transmits to a receiver on the
instrument panel.
The system operates on a radio frequency subject to
Federal Communications Commission (FCC) Rules and
with Industry and Science Canada.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and
(2)
this device must accept any interference received,
including interference that may cause undesired operation.
This device complies with RSS-210 of Industry and
Science Canada. Operation is subject to the following
two conditions: (1) this device may not cause
interference, and (2) this device must accept any
interference received, including interference that may
cause undesired operation of the device. Changes or modifications
to this system
by other than an
authorized service facility could void authorization to
use this equipment.
If a tire’s inflation pressure is between
5 psi (35 kPa)
and 25 psi (170 kPa), you will see a message on the
Driver Information Center. This message will show
which tire is underinflated and two chimes will sound.
An example would
be LOW TIRE PRESSURE-LR.
This would mean that the inflation pressure in your left
rear tire is between 5 psi (35 Pa) and 25 psi (170 Pa).
If the inflation pressure in the tire drops below
5 psi
(35 Ea), the message would read FLAT TIRE-LR and
four chimes will sound.
See “Driver Information
Center” in the Index.
The TPM will also alert you if a tire’s pressure is higher
than
42 psi (290 Wa). The message will show which tire
is overinflated and two chimes will sound. An example
would be HIGH PRESSURE-LR. This would mean that
the inflation pressure in your left rear tire is higher than
42 psi (290 kPa). See “Driver Information Center” in
the Index.
If a tire pressure message appears on the Driver
Information Center, stop as soon as you can. Have
the
tire pressures checked and set to those shown on your
Tire Loading Information label. See “Inflation
-- Tire
Pressure” in the Index.

Downloaded from www.Manualslib.com manuals search engine i ,h, CAUTION:
When the LOW TIRE PRESSURE or FLAT TIRE message is displayed on the Driver
Information Center, your vehicle’s handling
capabilities will be reduced during severe
maneuvers.
If you drive too fast, you could lose
control of your vehicle.
You or others could be
injured, Don’t drive over
55 mph (90 km/h) when
the
LOW TIRE PRESSURE or FLAT TIRE
message is displayed. Drive cautiously, and check
your tire pressures as soon as you can.
I
I
If a tire goes flat, you won’t need to stop on the side of
the road to change the tire. You can just keep on driving.
The shorter the distance you drive and the slower the
speed, the greater the chance that the tire will not have
to be replaced.
If you drive on a deflated EMT for
50 miles (80 km) or less and at speeds of 55 mph
(90 km/h) or less, there is a good chance that the tire can
be repaired. The tire can operate effectively with no air
pressure for up to 200 miles (320
km) at speeds up to
55 mph (90 km/h), but the tire would then have to be
replaced. When a tire is filled with air, it provides a cushion between the
road and the wheel. Because you
won’t have this cushion when driving on a deflated tire,
try to avoid potholes that could damage your wheel and
require replacement of it.
Some road hazards can damage a tire beyond repair.
This damage could occur even before you’ve driven on
the tire in
a deflated condition. When a tire has been
damaged, or
if you’ve driven any distance on a deflated
EMT, check with an authorized Goodyear EMT Service
Center to determine whether the tire can be repaired or
should be replaced. To maintain your vehicle’s extended
mobility feature, all replacement tires must be Extended
Mobility Tires. As soon as possible, contact the nearest
authorized Chevrolet or Goodyear EMT servicing
facility for inspection and repair or replacement. Call
Chevrolet at 1-800-CHEV-USA (1-800-243-8872) or
Goodyear at 1-800-789-9878 24-hours a day for
information on the location of the nearest EMT
servicing facility. In Canada, contact the Customer
Communication Center at 1-800-263-3777, or Canadian
Roadside Assistance at 1-800-268-6800. You can also
use the Goodyear number listed above to locate an
authorized EMT servicing facility.

Downloaded from www.Manualslib.com manuals search engine ’ A CAUTION:
Extended mobility tires are constructed
differently than other tires and could explode
during improper service. You or others could be
injured or killed if you attempt to repair, replace,
dismount, or mount an extended mobility tire.
Let only an authorized Goodyear
EMT Service
Center repair, replace, dismount and mount
extended mobility tires.
The valve stems on your extended mobility tires have
sensors that are part of the TPM. These sensors contain
batteries which are designed to last for
10 years under
normal driving conditions. See your dealer if you ever
need
to have a wheel replaced, or if the batteries in the
sensors ever need replacement.
NOTICE:
Using liquid sealants can damage the tire valves
and tire pressure monitor sensors in your
extended mobility tires. This damage would not
be covered by warranty. Don’t use liquid sealants
in your extended mobility tires.
If you feel that winter tires are needed for your driving
conditions, Goodyear Eagle M+S EMT tires are
available in your original equipment sizes from an
authorized Goodyear EMT retailer. These tires will
improve snow traction while maintaining your
Corvette’s extended mobility feature. When using
winter tires on your vehicle, be sure to use them on
all four wheels see “Buying New Tires” in the Index.
6-43

Downloaded from www.Manualslib.com manuals search engine Inflation -- Tire Pressure
The Tire-Loading Information label, which is on the
rear edge of the driver’s door shows the correct inflation
pressures for your tires when they’re cold. “Cold”
means your vehicle has been sitting for at least three
hours or driven no more than
1 mile (1.6 km).
NOTICE:
Don’t let anyone tell you that underinflation or
overinflation is all right. It’s not.
If your tires
don’t have enough
air (underinflation), you can
get the following:
0 Too much flexing
0 Too much heat
0 Tire overloading
0 Bad wear
Bad handling
0 Bad fuel economy.
NOTICE: (Continued) NOTICE: (Continued)
If your tires
have too much air (overinflation).
you can get the following:
Unusual wear
Bad handling
0 Rough ride
0 Needless damage from road hazards.
When to Check
Check your tires once a month or more.
How to Check
With the Tire Pressure Monitor, you can check tire
inflation pressures while driving. After you’ve reached a
speed
of 15 mph (24 kmh) or more, press and release the
GAGES button on the Driver Information Center (DIC)
until the front tire pressures are displayed. Then, press
and release the GAGES button for the rear tire
pressures.
If the display doesn’t show tire pressure, or if
the SERVICE TIRE
MON SYS message appears, see
your dealer for service.

Downloaded from www.Manualslib.com manuals search engine Tire Rotation
The tires on your Corvette are directional and are
different sizes front to rear. Due to this, your tires should
not be rotated. Each tire and wheel should be used only
in the position it is in.
When It’s Time for New Tires
One way to tell when it’s
time for new tires is to
check the treadwear
indicators, which will
appear when your tires have
only 1/16 inch (1.6
mm) or
less of tread remaining.
You need a new tire if
any of the following statements
are true:
0 You can see the indicators at three or more places
around the tire.
0 You can see cord or fabric showing through the
tire’s rubber.
0 The tread or sidewall is cracked, cut or snagged deep
enough to show cord or fabric.
The tire has a bump, bulge or split.
The tire has a puncture, cut or other damage that
can’t be repaired well because of the size or location
of the damage.
Buying New Tires
To find out what kind and size of tires you need, look at
the Tire-Loading Information label.
The tires installed on your vehicle when it was new had
a Tire Performance Criteria Specification (TPC Spec)
number on each tire’s sidewall. When you get new tires,
get ones with that same TPC Spec number. That way
your vehicle will continue to have tires that are designed
to give proper endurance, handling, speed rating,
traction, ride and other things during normal service on
your vehicle. If your tires have an all-season tread
design, the TPC number will be followed by an
“MS”
(for mud and snow).
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.
6-45

Downloaded from www.Manualslib.com manuals search engine Uniform Tire Quality Grading
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration, which grades tires by
treadwear, traction and temperature performance. (This
applies only to vehicles sold in the United States.) The
grades are molded on the sidewalls of most passenger
car tires. The Uniform Tire Quality Grading system does
not apply to deep tread, winter-type snow tires,
space-saver or temporary use spare tires, tires with
nominal rim diameters of 10 to 12 inches (25 to
30 cm),
or to some limited-production tires.
While the tires available on General Motors passenger
cars and light trucks may vary with respect to these
grades, they must also conform to Federal safety
requirements and additional General Motors Tire
Performance Criteria (TPC) standards.
Treadwear
The treadwear grade is a comparative rating based on
the wear rate of the tire when tested under controlled
conditions on a specified government test course. For
example, a tire graded 150 would wear one and a half
(1 1/2) times as well on the government course as a tire
graded
100. The relative performance of tires depends
upon the actual conditions of their use, however, and
may depart significantly from the norm due to variations
in driving habits, service practices and differences in
road characteristics and climate.
Traction -- A, B, C
The traction grades, from highest to lowest, are A, B, 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 (straight ahead) traction tests and does not
include cornering (turning) traction.
6-47

Downloaded from www.Manualslib.com manuals search engine 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.
Magnesium Wheel Finish
NOTICE:
Improper paint repair or refinishing can cause
corrosion damage to a magnesium wheel. See
your dealer if a magnesium wheel needs paint
repair or refinishing.
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.
6-59

Downloaded from www.Manualslib.com manuals search engine Vehicle Identification Number (VIN)
This is the legal identifier for your vehicle. It appears on
a plate in the front comer of the instrument panel, on the
driver’s side. You can see it
if you look through the
windshield from outside your vehicle. The VIN also
appears on the Vehicle Certification and Service
Parts
labels and the certificates of title and registration.
Engine Identification
The 8th character in your VIN is the engine code. This
code will help you identify your engine, specifications
and replacement parts.
Service Parts Identification Label
You’ll find this label on the cover assembly for the rear
left-hand compartment storage pocket. It’s very helpful
if you ever need to order parts. On this label is:
0 your VIN,
the model designation,
paint information and
a list of all production options and special
Be sure that this label is not removed from the vehicle.
equipment.
Electrical System
Add-on
Electrical Equipment
NOTICE:
Don’t add anything electrical to your vehicle
unless you check with your dealer first. Some
electrical equipment can damage your vehicle
and the damage wouldn’t be covered by your
warranty. Some add-on electrical equipment
can keep other components from working as
they should.
Your vehicle has an air bag system. Before attempting to
add anything electrical to your vehicle, see “Servicing
Your
Air Bag-Equipped Corvette” in the Index.