Page 320 of 406
000
INJ INJ ENG SEN
STRTR ABS IGN PCM ION
000 ENG CTRL NC CRUISE
j 1:
15305530 A
Fuse
INJ
INJ
Fuse and Relay Center 2
Usage
Fuel Injectors (Not used for V6) (LH
injectors for V8 Ignition Module)
Fuel Injectors (All for
V6) (RH
injectors for V8 and Ignition Module)
ENG SEN Mass Air Flow, Heated Oxygen
Sensor,
Skip Shift Solenoid (V8
Only), Reverse Lockout Solenoid,
Brake Switch
STRTR
Powertrain Control Module and
Clutch Pedal Switch
Fuse
ABS IGN
PCM IGN
ENG CTRL
NC CRUISE
ENG CTRL
I/P- 1
IGN
m-2
Relay
AIR SOL
AIR PUMP
AIC COMP
FUELPUMP STARTER
IGN
Usage
Anti-Lock Brake System Module
Powertrain Control Module
Ignition Module
(V6 Only),
Automatic Transmission and
Charcoal
Canister Purge Solenoid
Air Conditioning Compressor Relay, Cruise Control Switches and Module
Engine Controls, Fuel
Pump, PCM,
A.I.R. and Cooling
Fans
HVAC Blower Control and Relay
Ignition Switch, Relay and Starter
Enable Relay
Instrument Panel
Fuse Center
6-67
Page 332 of 406
I Short TripKity Maintenance Schedule I
The services shown in this schedule up to 100,000 miles
(166 OOO km) should be performed after 100,000 miles
(166 000 km) at the same intervals. The services shown
at
150,000 miles (240 000 km) should be performed at
the same interval after
150,000 miles (240 000 km).
See “Owner Checks and Services” and “Periodic
Maintenance Inspections” following.
Footnotes
The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior
to the
completion of the vehicle’s useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the maintenance
be recorded.
+ A good time to check your brakes is during tire
rotation. See “Brake System Inspection” under
“Periodic Maintenance Inspections” in Part
C of
this schedule.
7-7
Page 347 of 406
I - Long Tkipmighway Maintenance Schedule,
The services shown in this schedule up to 100,000 miles
( 166 000 km) should be performed after 100,000 miles
(166
000 km) at the same intervals. The services shown
at
150,000 miles (240 000 km) should be performed at
the same interval after 150,000 miles
(240 000 km).
See “Owner Checks and Services” and “Periodic
Maintenance Inspections’’ following.
Footnotes
The U.S. Environmental Protection Agency or the
California Air Resources
Board has determined that the
failure to
perform this maintenance item will not nullify
the emission warranty
or limit recall liability prior to the
completion of the vehicle’s useful life. We, however,
urge that all recommended maintenance services be
performed
at the indicated intervals and the maintenance
be recorded.
+ A good time to check your brakes is during tire
rotation. See “Brake System Inspection” under
“Periodic Maintenance Inspections” in Part
C of
this schedule.
7-22
Page 359 of 406

Starter Switch Check
r
Brake-Transmission Shift Interlock (BTSI) Check
(Automatic Transmission)
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 “Parking
Brake,’
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.
-
A 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
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 “Parking Brake”
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.
Page 360 of 406

Ignition Transmission Lock Check
While parked, and with the
parking brake set, try to turn
the ignition key to LOCK in each shift lever position.
With an automatic transmission, the key should turn
to LOCK only when the shift lever is in PARK (P).
With a manual transmission, the key should turn to
On vehicles with a key release button, try to turn the key
to LOCK without pressing the button. The key should
turn to LOCK only when you press the key button. LOCK only when the
shift lever is in REVERSE (R).
On
all vehicles, the key should come out only in LOCK.
Parking Brake and Automatic Transmission
PA-” :P) M ’nanisl k
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.
0 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.
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.
7-35
Page 362 of 406
Throttle System Inspection
Inspect the throttle system for interference or binding,
and for damaged or missing parts. Replace parts as
needed. Replace any components that have high effort
or excessive wear.
Do not lubricate accelerator and
cruise control cables.
Rear Axle Service
Check the gear lubricant level in the rear axle and add if
needed. See “Rear Axle” 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. Check parking
brake adjustment. You may need to have your brakes
inspected more often if your driving habits or conditions
result in frequent braking.
7-37
Page 363 of 406

Part D: Recommended Fluids
and Lubricants
NOTE: Fluids and lubricants identified below by name,
part number or specification may be obtained from
your dealer.
USAGE
Engine Oil
Engine Coolant
Hydraulic Brake System
FLUIDLUBRICANT
Engine Oil with the American
Petroleum Institute Certified For
Gasoline Engines “Starburst”
symbol of the proper viscosity. To
determine the preferred viscosity
for your vehicle’s engine, see
“Engine Oil’’
in the Index.
50/50 mixture of clean water
(preferably distilled) and use only
GM Goodwrench@ DEX-COOL@
or Havoline@ DEX-COOL@
Coolant. See “Engine Coolant” in
the Index.
Delco Supreme 11
@ Brake Fluid
(GM Part No. 12377967 or
equivalent DOT-3 Brake Fluid).
USAGE
Hydraulic Clutch
System
Power Steering System
Manual
Transmission
Automatic
Transmission
Key Lock
Cylinders
Clutch Linkage
Pivot Points
FLUIDLUBRICANT
Hydraulic Clutch Fluid (GM Part
No. 12345347 or equivalent
DOT-3 Brake Fluid).
GM Power Steering Fluid (GM
Part No. 1052884 - 1 pint,
1050017 - 1 quart, or equivalent).
DEXRON@-111 Automatic
Transmission Fluid.
DEXRON@-I11 Automatic
Transmission Fluid.
Multi-Purgse Lubricant,
Superlube (GM Part
No. 12346241 or equivalent).
Engine Oil.
7-38
Page 379 of 406

1998 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.)
CURRENT PUBLICATIONS FOR 1998 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
1998 GM transmissions, transaxles and transfer cases.
RETAIL SELL PRICE: $40.00
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.
PLEASE COMPLETE THE ORDER FORM SHOWN ON
THE FOLLOWING PAGE AND MAIL TO:
Helm, Incorporated RO. Box 07130 Detroit, MI 48207
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:
$1 5.00
Without Portfolio: Owner’s Manual only.
RETAIL SELL PRICE: $1
0.00
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.
OR ORDER TOLL FREE: 1-800-782-4356
Monday-Friday 8:OO AM - 6:OO PM Eastern Time
For Credit Card Orders Only (VISA-MasterCarcCDisr)