check engine PONTIAC GRAND PRIX 1999 Service Manual

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Scheduled Maintenance
7-9
52,500 Miles (87 500 km)
Check Oil Life Monitor. If engine oil and filter are changed, reset monitor.
See ªEngine Oilº in the Index.
An Emission Control Service. (See footnote *.)
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
60,000 Miles (100 000 km)
Check Oil Life Monitor. If engine oil and filter are changed, reset monitor.
See ªEngine Oilº in the Index.
An Emission Control Service. (See footnote *.)
For supercharged engines only: Check the supercharger oil level and add oil as
needed (or every 36 months, whichever occurs first). See ªRecommended
Fluids and Lubricantsº in this section.
An Emission Control Service. (See footnote
.)
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
Inspect engine accessory drive belt.
An Emission Control Service.
Replace air cleaner filter.
An Emission Control Service.
(Continued)
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE

Scheduled Maintenance
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7-10
60,000 Miles (100 000 km) (Continued)
Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket
for any damage. Replace parts as needed.
An Emission Control Service. (See footnote
.)
67,500 Miles (112 500 km)
Check Oil Life Monitor. If engine oil and filter are changed, reset monitor.
See ªEngine Oilº in the Index.
An Emission Control Service. (See footnote *.)
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
75,000 Miles (125 000 km)
Check Oil Life Monitor. If engine oil and filter are changed, reset monitor.
See ªEngine Oilº in the Index.
An Emission Control Service. (See footnote *.)
Inspect air cleaner filter if you are driving in dusty conditions. Replace filter
if necessary.
An Emission Control Service. (See footnote
.)
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE

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Scheduled Maintenance
7-11
82,500 Miles (137 500 km)
Check Oil Life Monitor. If engine oil and filter are changed, reset monitor.
See ªEngine Oilº in the Index.
An Emission Control Service. (See footnote *.)
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
90,000 Miles (150 000 km)
Check Oil Life Monitor. If engine oil and filter are changed, reset monitor.
See ªEngine Oilº in the Index.
An Emission Control Service. (See footnote *.)
Replace air cleaner filter.
An Emission Control Service.
Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket
for any damage. Replace parts as needed.
An Emission Control Service. (See footnote
.)
For supercharged engines only: Check the supercharger oil level and add oil as
needed (or every 36 months, whichever occurs first). See ªRecommended
Fluids and Lubricantsº in this section.
An Emission Control Service. (See footnote
.)
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE

Scheduled Maintenance
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7-12
97,500 Miles (162 500 km)
Check Oil Life Monitor. If engine oil and filter are changed, reset monitor.
See ªEngine Oilº in the Index.
An Emission Control Service. (See footnote *.)
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information. (See footnote +.)
100,000 Miles (166 000 km)
Inspect spark plug wires.
An Emission Control Service.
Replace spark plugs.
An Emission Control Service.
Change automatic transaxle fluid and filter if the vehicle is mainly driven
under one or more of these conditions:
± In heavy city traffic where the outside temperature regularly reaches 90
F
(32
C) or higher.
± In hilly or mountainous terrain.
± When doing frequent trailer towing.
± Uses such as found in taxi, police or delivery service.
If you haven't used your vehicle under severe service conditions listed
previously and, therefore, haven't changed your automatic transaxle fluid,
change both the fluid and filter.
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE

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7-14
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.

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7-16
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. 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.Brake
-Transaxle Shift Interlock (BTSI) 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. 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 RUN
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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7-17
Ignition Transaxle Lock Check
While parked, and with the parking brake set, try to turn
the ignition key to LOCK in each shift lever position.

The key should turn to LOCK only when the shift
lever is in PARK (P).

The key should come out only in LOCK.
Parking Brake and Automatic Transaxle 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 transaxle 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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8-14
CURRENT PUBLICATIONS FOR 1999 PONTIAC
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 PONTIAC 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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9-3
Outside of Your Vehicle 6-55 . . . . . . . . . . . . . . . . . . . . . . . .
Special Problems 6-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stains 6-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tires 6-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vinyl 6-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheels 6-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield and Wiper Blades 6-54 . . . . . . . . . . . . . . . . . . .
Clock, Setting the 3-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Column Shift 2-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Comfort Controls 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compact Disc Care 3-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compact Disc Player 3-14, 3-16 . . . . . . . . . . . . . . . . . . . . . . .
Care 3-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Errors 3-15, 3-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trunk-Mounted CD Changer 3-19 . . . . . . . . . . . . . . . . . . . .
Compact Spare Tire 5-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Console Shift 2-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Console Storage, Center 2-61 . . . . . . . . . . . . . . . . . . . . . . . . . .
Content Theft-Deterrent System 2-24 . . . . . . . . . . . . . . . . . . .
Arming Confirmation 2-25 . . . . . . . . . . . . . . . . . . . . . . . . . .
Arming with the Power Lock Switch 2-24 . . . . . . . . . . . . . .
Arming with the Remote Keyless Entry Transmitter 2-25 . .
Disarming with the Key 2-25 . . . . . . . . . . . . . . . . . . . . . . . .
Disarming with the Remote Keyless
Entry Transmitter 2
-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nuisance Alarms 2-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control
Loss Of 4
-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle 4-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Convenience Net 2-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Convex Outside Mirror 2-58 . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant 6-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding 6-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Checking 6
-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heater, Engine 2-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recovery Tank 5-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Temperature Gage 2-80 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What to Use 6-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cooling System 5-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Courtesy Lamps 2-54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Courtesy Transportation 8-10 . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise Control 2-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Customer Assistance 8-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hearing Impaired 8-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Information 8-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speech Impaired 8-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Text Telephone Users 8-5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Customer Satisfaction Procedure 8-3 . . . . . . . . . . . . . . . . . . . .
Damage 6-57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Finish 6-57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sheet Metal 6-57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Daytime Running Lamps 2-52 . . . . . . . . . . . . . . . . . . . . . . . . .
Dead Battery 5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Defects, Reporting Safety 8-12 . . . . . . . . . . . . . . . . . . . . . . . .
Defensive Driving 4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Defogger, Rear Window 3-8 . . . . . . . . . . . . . . . . . . . . . . . . . .
Defogging 3-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Defrosting 3-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Delayed Illumination 2-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DIC 2-86 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions, Vehicle 6-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disabilities, GM Mobility Program for Persons 8-7 . . . . . . . .
Disarming with the Key 2-25 . . . . . . . . . . . . . . . . . . . . . . . . . .
Disarming with the Remote Keyless Entry Transmitter 2-25 .
Dolby B Noise Reduction 3-13 . . . . . . . . . . . . . . . . . . . . . . . .

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9-4
Door
Ajar Light 2-87, 2-91 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Locks 2-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive, Automatic Transaxle 2-34 . . . . . . . . . . . . . . . . . . . . . . .
Driver Information Center 2-86 . . . . . . . . . . . . . . . . . . . . . . . .
English/Metric Button 2-90 . . . . . . . . . . . . . . . . . . . . . . . . .
Mode Button 2-90 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reset Button 2-90 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driver Position 1-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driving
City 4
-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Defensive 4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drunken 4-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Freeway 4-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
In Foreign Countries 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
In the Rain 4-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Night 4-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On Curves 4-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On Grades While Towing a Trailer 4-39 . . . . . . . . . . . . . . .
On Hill and Mountain Roads 4-25 . . . . . . . . . . . . . . . . . . . .
On Snow and Ice 4-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Through Water 4-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wet Roads 4-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Winter 4-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
With a Trailer 4-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DRL 2-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drunken Driving 4-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Equipment, Adding 3-26, 6-60 . . . . . . . . . . . . . . .
Electrical System 6-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrochromic Day/Night Rearview Mirror 2-57 . . . . . . . . . .
Engine 6-10, 6-11, 6-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Cleaner/Filter 6-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant 6-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Coolant Heater 2
-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Level Check 7-14 . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Temperature Gage 2-80 . . . . . . . . . . . . . . . . . . . . .
Coolant Temperature Light 2-79 . . . . . . . . . . . . . . . . . . . . .
Exhaust 2-22, 2-43, 4-30 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse Block (Passenger's Side) 6-63 . . . . . . . . . . . . . . . . . . .
Identification 6-59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Level Check 7-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overheated Protection Operating Mode 5-9 . . . . . . . . . . . .
Overheating 5-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Running While Parked 2-44 . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 6-67 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting Your 2-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supercharged 6-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Cooling When Trailer Towing 4-40 . . . . . . . . . . . . . . .
Engine Oil 6-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding 6-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additives 6-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking 6-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Used 6-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What Kind to Use 6-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
When to Change 6-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ethanol 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust, Engine 2-22, 2-43, 4-30 . . . . . . . . . . . . . . . . . . . . . .
Exit Lighting 2-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Express-Open Sunroof 2-65 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior Lamps 2-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fabric Cleaning 6-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filling a Portable Fuel Container 6-8 . . . . . . . . . . . . . . . . . . . .
Filling Your Tank 6-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filter, Air 6-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Finish Care 6-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .