1999 CHEVROLET CORVETTE check engine

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7-13
Part B: Owner Checks and Services
Listed in this part are owner checks and services which
should be performed at the intervals specified to help
ensure the safety, dependability and emission control
performance of your vehicle.
Be sure any necessary repairs are completed at once.
Whenever any fluids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown in
Part D.
At Each Fuel Fill
It is important for you or a service station attendant to
perform these underhood checks at each fuel fill.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. See ªEngine Oilº in the Index for
further details.
Engine Coolant Level Check
Check the engine coolant level and add DEX
-COOL

coolant mixture if necessary. See ªEngine Coolantº in
the Index for further details.Windshield Washer Fluid Level Check
Check the windshield washer fluid level in the
windshield washer tank and add the proper fluid if
necessary. See ªWindshield Washer Fluidº in the Index
for further details.
At Least Once a Month
Tire Inflation Check
Make sure tires are inflated to the correct pressures.
See ªTiresº in the Index for further details.
Cassette Deck Service
Clean cassette deck. Cleaning should be done every
50 hours of tape play. See ªAudio Systemsº in the Index
for further details.
Power Antenna Service
Clean power antenna mast. See ªAudio Systemsº in the
Index for further details.

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7-15
Starter Switch Check
CAUTION:
When you are doing this check, the vehicle could
move suddenly. If it does, you or others could be
injured. Follow the steps below.
1. Before you start, be sure you have enough room
around the vehicle.
2. Firmly apply both the parking brake (see ªParking
Brakeº in the Index if necessary) and the regular brake.
NOTE: Do not use the accelerator pedal, and be
ready to turn off the engine immediately if it starts.
3. On automatic transmission vehicles, try to start the
engine in each gear. The starter should work only in
PARK (P) or NEUTRAL (N). If the starter works in
any other position, your vehicle needs service.
On manual transmission vehicles, put the shift lever
in NEUTRAL (N), push the clutch down halfway
and try to start the engine. The starter should work
only when the clutch is pushed down all the way to
the floor. If the starter works when the clutch isn't
pushed all the way down, your vehicle needs service.Brake
-Transmission Shift Interlock (BTSI) Check
(Automatic Transmission)
CAUTION:
When you are doing this check, the vehicle could
move suddenly. If it does, you or others could be
injured. Follow the steps below.
1. Before you start, be sure you have enough
room around the vehicle. It should be parked on a
level surface.
2. Firmly apply the parking brake (see ªParking Brakeº
in the Index if necessary).
NOTE: Be ready to apply the regular brake
immediately if the vehicle begins to move.
3. With the engine off, turn the key to the ON position,
but don't start the engine. Without applying the
regular brake, try to move the shift lever out of
PARK (P) with normal effort. If the shift lever
moves out of PARK (P), your vehicle's BTSI
needs service.

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7-16
Ignition Automatic Transmission Lock Check
While parked, and with the parking brake set, try to turn
the ignition key to OFF in each shift lever position. The
key should turn to OFF only when the shift lever is in
PARK (P).
On all vehicles, the key should come out only in OFF.
Parking Brake and Automatic Transmission
PARK (P) Mechanism Check
CAUTION:
When you are doing this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged. Make
sure there is room in front of your vehicle in case
it begins to roll. Be ready to apply the regular
brake at once should the vehicle begin to move.
Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake, set the
parking brake.

To check the parking brake's holding ability: With
the engine running and transmission in
NEUTRAL (N), slowly remove foot pressure from
the regular brake pedal. Do this until the vehicle is
held by the parking brake only.

To check the PARK (P) mechanism's holding ability:
With the engine running, shift to PARK (P). Then
release all brakes.
Underbody Flushing Service
At least every spring, use plain water to flush any
corrosive materials from the underbody. Take care to
clean thoroughly any areas where mud and other debris
can collect.

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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.

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7-18 Engine Cooling System Inspection
Inspect the hoses and have them replaced if they are
cracked, swollen or deteriorated. Inspect all pipes,
fittings and clamps; replace as needed. Clean the outside
of the radiator and air conditioning condenser. To help
ensure proper operation, a pressure test of the cooling
system and pressure cap is recommended at least once
a year.
Rear Axle Service
Check the gear lubricant level in the rear axle and add if
needed. See ªRear Axleº in the Index. A fluid loss may
indicate a problem. Check the axle and repair it
if needed.
Brake System Inspection
Inspect the complete system. Inspect brake lines and
hoses for proper hook
-up, binding, leaks, cracks,
chafing, etc. Inspect disc brake pads for wear and rotors
for surface condition. Inspect other brake parts,
including calipers, parking brake, etc. You may need to
have your brakes inspected more often if your driving
habits or conditions result in frequent braking.

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8-12
CURRENT PUBLICATIONS FOR 1999 CHEVROLET
SERVICE MANUALS
Service Manuals have the diagnosis and repair information
on engines, transmission, axle, suspension, brakes,
electrical, steering, body, etc.
RETAIL SELL PRICE: $90.00
TRANSMISSION, TRANSAXLE, TRANSFER CASE
UNIT REPAIR MANUAL
This manual provides information on unit repair service
procedures, adjustments and specifications for the
1999 GM transmissions, transaxles and transfer cases.
RETAIL SELL PRICE: $50.00
SERVICE BULLETINS
Service Bulletins give technical service information needed
to knowledgeably service General Motors cars and trucks.
Each bulletin contains instructions to assist in the
diagnosis and service of your vehicle.OWNER'S INFORMATION
Owner publications are written directly for Owners and
intended to provide basic operational information about the
vehicle. The owner's manual will include the Maintenance
Schedule for all models.
In-Portfolio: Includes a Portfolio, Owner's Manual and
Warranty Booklet.
RETAIL SELL PRICE: $15.00
Without Portfolio: Owner's Manual only.
RETAIL SELL PRICE: $10.00
CURRENT & PAST MODEL ORDER FORMS
Service Publications are available for current and past
model GM vehicles. To request an order form, please
specify year and model name of the vehicle.
PLEASE COMPLETE THE ORDER FORM SHOWN ON
THE FOLLOWING PAGE AND MAIL TO:
Helm, Incorporated
P.O. Box 07130
Detroit, MI 48207OR ORDER TOLL FREE: 1-800-551-4123
Monday-Friday 8:00 AM ± 6:00 PM Eastern Time
For Credit Card Orders Only (VISA±MasterCard±Discover)
1999 CHEVROLET SERVICE PUBLICATIONS ORDERING INFORMATION
The following publications covering the operation and servicing of your vehicle can be purchased by filling out
the Service Publication Order Form in this book and mailing it in with your check, money order,
or credit card information to Helm, Incorporated (address below.)

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9-1
Section 9 Index
A
ccessory Power Outlet 2-60 . . . . . . . . . . . . . . . . . . . . . . . . .
Active Handling
System 4
-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Light 2-81 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding Equipment to the Outside of Your Vehicle 6-3 . . . . . .
Air Bag 1-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How Does it Restrain 1-24 . . . . . . . . . . . . . . . . . . . . . . . . . .
How it Works 1-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Location 1-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Readiness Light 1-21, 2-78 . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing 1-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System 1-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What Makes it Inflate 1-23 . . . . . . . . . . . . . . . . . . . . . . . . . .
What Will You See After it Inflates 1-24 . . . . . . . . . . . . . . .
When Should it Inflate 1-23 . . . . . . . . . . . . . . . . . . . . . . . . .
Air Cleaner 6-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning 3-3, 3-8, 3-10 . . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning Refrigerants 6-76 . . . . . . . . . . . . . . . . . . . . .
Air Dam 2-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alignment and Balance, Tire 6-49 . . . . . . . . . . . . . . . . . . . . . .
Aluminum Wheels, Cleaning 6-62 . . . . . . . . . . . . . . . . . . . . . .
Antenna
Fixed Mast 3
-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Integrated 3-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Mast 3-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Antifreeze 5-13, 5-16, 6-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . Anti
-Lock
Brake System Warning Light 2-80, 4-7 . . . . . . . . . . . . . . . .
Brakes 4-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Anti-Theft Radio 3-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appearance Care 6-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appearance Care Materials Chart 6-64 . . . . . . . . . . . . . . . . . .
Ashtray 2-59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio Equipment, Adding 3-29 . . . . . . . . . . . . . . . . . . . . . . . .
Audio Systems 3-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic
Electronic Dual Climate Control System 3
-4 . . . . . . . . . . . .
Headlamp Control 2-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overdrive 2-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Transmission
Check 7
-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid 6-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 2-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Park Mechanism Check 7-16 . . . . . . . . . . . . . . . . . . . . . . . .
Shifting 2-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting Your Engine 2-23 . . . . . . . . . . . . . . . . . . . . . . . . . .
Axle, Limited-Slip Rear 2-39 . . . . . . . . . . . . . . . . . . . . . . . . .
Axle, Rear 6-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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9-2
Back-Up Lamp Bulb Replacement 6-38 . . . . . . . . . . . . . . . .
Battery 6-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jump Starting 5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement, Remote Function Actuation (RFA)
System 2
-12, 2-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warnings 5-3, 5-4, 5-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BBB 8-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Belt, Engine Accessory 6-77 . . . . . . . . . . . . . . . . . . . . . . . . . .
Blizzard 4-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake
Adjustment 6
-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Fluid 6-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid 6-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Master Cylinder 6-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking 2-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pedal Travel 6-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing System Parts 6-32 . . . . . . . . . . . . . . . . . . . . . . . .
System Warning Light 2-79 . . . . . . . . . . . . . . . . . . . . . . . . .
Transmission Shift Interlock (BTSI) 2-28, 2-37 . . . . . . . . .
Transmission Shift Interlock Check 7-15 . . . . . . . . . . . . . . .
Wear 6-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What to Add 6-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brakes, Anti-Lock 4-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Braking 4-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Braking in Emergencies 4-12 . . . . . . . . . . . . . . . . . . . . . . . . . .
Break-In, New Vehicle 2-20 . . . . . . . . . . . . . . . . . . . . . . . . . .
BTSI 2-28, 2-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BTSI Check 7-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bulb Replacement 6-33, 6-74 . . . . . . . . . . . . . . . . . . . . . . . . .
Canada, Ordering Service and Owner Publications 8-11 . . .
Canadian Roadside Assistance 8-7 . . . . . . . . . . . . . . . . . . . . . .
Capacities and Specifications 6-74 . . . . . . . . . . . . . . . . . . . . . . Carbon Monoxide 2
-16, 2-38, 4-30 . . . . . . . . . . . . . . . . . . . .
Care of Your Cassette Tape Player 3-30 . . . . . . . . . . . . . . . . . .
Cassette
Deck Service 7
-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tape Player 3-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CD Adapter Kits 3-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Center Console Storage 2-56 . . . . . . . . . . . . . . . . . . . . . . . . . .
Certification Label 4-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chains, Tire 6-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check Gages Light 2-86 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Your Restraint Systems 1-39 . . . . . . . . . . . . . . . . . .
Chemical Paint Spotting 6-63 . . . . . . . . . . . . . . . . . . . . . . . . . .
Child Restraints 1-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Add-on 1-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Securing in the Passenger Seat Position 1-33 . . . . . . . . . . .
Top Strap 1-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Where to Put 1-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cigarette Lighter 2-59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Breakers and Fuses 6-68 . . . . . . . . . . . . . . . . . . . . . . .
Cleaner, Air 6-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning
Aluminum Wheels 6
-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coated Moldings 6-57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Convenience Net 6-58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Convertible Top 6-61 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior Lamps/Lenses 6-60 . . . . . . . . . . . . . . . . . . . . . . . .
Fabric 6-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glass Surfaces 6-58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inside of Your Vehicle 6-56 . . . . . . . . . . . . . . . . . . . . . . . . .
Instrument Panel 6-58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior Plastic Components 6-58 . . . . . . . . . . . . . . . . . . . . .
Leather 6-57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outside of Your Vehicle 6-60 . . . . . . . . . . . . . . . . . . . . . . . .
Removable Roof Panel 6-60 . . . . . . . . . . . . . . . . . . . . . . . . .