check engine Oldsmobile Cutlass Supreme 1994 s Owner's Guide

driven under one or more of these
c.onditions:
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.
(With some models, you shouldn’t
ever tow
a trailer. See Towing a
Trailer
in the Index.)
Uses such as.found in taxi, police
car or delivery service.
If-you do not use your vehicle under
any of these conditions, change both
the fluid and filter every
100,000
miles (166 000 km) .
Replace spark plugs with the proper
type. See
Replacement-Parts in the
Index.
9. Spark Plug Wire Inspection*T -
Inspect for burns, .cracks or other
damage. Check the boot fit at the
coils and at the spark plugs. Replace
wires as needed.
8. Spark PIug~Replacement* -
-10. Exhaust Gas Recirculation (EGR)
System Inspection
(3.4L Code X
engine only)*? - Conduct the
EGR system service-as described in
the service manual.
To purchase a
service manual, see Service
Publications
in the Index.
1 1. Air Cleaner Filter Replacementgc -
Replace every 30,000 miles
(50 000 lun) or more often under
dusty conditions. Ask your dealer
for the proper replacement intervals
for your driving conditions.
12. Fuel Tank, Cap and Lines
Inspectiong‘t
- Inspect fuel tank,
cap and lines (including fuel rails
and injection assembly). for damage
or leaks. Inspect fuel cap gasket for
an even filler neck imprint or any
damage. Replace parts as needed.
Periodic replacement of the fuel
filter is not required.
NOTE: To determine your engine’s
displacement and code, see
Engine
Identification
in the Index.
* = An Emission Control Service.
f = 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
vehicle
useful life. General Motors,
however, urges that all recommended
maintenance services be performed at the
indicated intervals and the maintenance
be recorded in “Section
E: Maintenance
Record.”
243

Maintenance Schedule
244
Section B: Owner Checks and Services
Listed below 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 Section D.
At Each Fuel Fill -(It is important for you or a service station attendant to perform these underhood checks at each fuel fill.)
I
CHECK
OR SERVICE WHAT TO DO.
Engine Oil Level
Check
the engine oil level and add the proper oil if necessary. See Engine Oil in the Index for
further details.
Engine Index for further details.
Check
the engine coolant level and add the proper coolant mix if necessary. See Coolant in the
Windshield Washer Check the windshield washer fluid level in the windshield washer tank and add the proper fluid
if
Fluid Level necessary. See Windshield Washer Fluid in the Index for further details.
At Least Once Month
CHECK
OR SERVICE WHAT TO DO
Tire
Inflation Check
tire inflation. Make sure they are inflated to the pressures specified on the Tire-Loading
Information label located on the rear edge of the driver’s door. See Tires in the Index for
further details.
Cassette Deck
I
Clean cassette deck. Cleaning should be done every 15 hours of tape play, See Audio Systems in
the
Index for further details.

I At Least Once a Year
~~
CHECK
I OR SERVICE
Key Lock Cylinders
Body Lubrication
Starter Switch
Steering Column
Lock
WHAT TO DO
~. ~ .
Lubricate the key lock cylinders with the lubricant specified in Section D.
Lubricate all body door hinges. Also lubricate all hinges and latches, including those for the
hood, rear compartment, glove box door, console door and any folding seat hardware. Section
D
tells you what to use.
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 Parking Brake in the Index if necessary) and the
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 P (Park) or N (Neutral). If
regular brake.
the starter works in any other position, your vehicle needs service.
While parked, and with the parking brake set,
try to turn the key to Lock in each shift lever
position.
The ley should turn to Lock only when the shift lever is in P (Park).
. The key should come out only in Lock.
245

Maintenance Schedule
246
3f Least Once a Year (cant.)
CHECK
OR SERVICE
Parking Brake.
and Automatic
Transaxle
P (Park)
Mechanism Check
Underbody Flushing
WHAT TO DO
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: With the engine running and transaxle in N (Neutral), slowly
remove foot pressure from the regular brake pedal.
Do this until the vehicle is held by the
parlung brake only.
To check the P (Park) mechanism’s holding ability: Shift to P (Park). Then release all brakes.
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.

Section C: Periodic Maintenance Inspections
Listed below are inspections and services which should be performed at least twice a year (for instance, each spring and fall).
You should let your GM dealer’s service department or other qualified service center
do these jobs. Make sure any necessary
Bepairs are completed at once.
INSPECTION
OR SERVICE
Restraint Systems
Steering, Suspension
and FrontWheel-
Drive Axle Boot and
Seal Inspection
Exhaust System
Inspection
Throttle Linkage
Inspection
Brake System Inspection
WHAT SHOULD BE DONE
Now and then, make sure all your belts, buckles, latch plates, retractors, anchorages and
reminder systems are working properly. Look for any loose parts or damage.
If you see anything
that might keep a restraint system from doing its job, have it repaired.
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
hookup, binding, leaks, cracks, chafing, etc. Clean and then inspect the drive axle boot seals for
damage, tears or leakage. Replace seals if necessary.
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
Engine Exhaust in the Index.
.. -
Inspect the throttle linkage for interference or binding, and for damaged or missing parts.
-Replace parts as needed.
Inspect the complete system. Inspect brake lines and hoses for proper hookup, binding, leaks, cracks,
chafing, etc. Inspect disc brake pads for wear and rotors for surface condition. Inspect other bralte
parts, including calipers, parking brake, etc. Check parking bralte adj\
ustment. You may need to have
your brakes inspected more often
if your driving habits or conditions result in frequent braking.
NOTE:-A low brake fluid level can indicate worn disc brake pads which may need to be serviced.
Also,
if the bralte system warning light stays on or comes on, something may be wrong with the
brake system. See
Brake System Warning Light in the Index. If your vehicle is equipped with anti-
lock brakes and the anti-lock bralte system warning
light stays on, comes on or flashes, something
may be wrong with the anti-lock brake system. See
Anti-Lock Brake System Warning Light in the Index.
247

Passing ........................................... 132
Winter Driving
............................... 140
With a Trailer
................................ 146
Drunken Driving
.............................. 126
Electric Outside Mirror Control
..... 82
Electrical Center, Underhood
.......... 220
Electrical Equipment.
Adding
............................. 60. 111. 220
Electronic Climate Control
.............. 107
Emergencies on the Road
................. 149
Emergency Starting
.......................... 150
Emergency Towing .......................... 154
Engine Block Heater
.......................... 61
Engine Coolant
................................ 190
Checking &Adding
.............. 160, 161
Heater
...................................... 61, 186
Low Coolant Warning Light ........... 94
Proper Mixture to Use
.................. 161
Safety Warnings About
.................. 159, 160, 181, 190
Temperature Gage
........................... 93
Engine Exhaust
.................................. 69
Engine Identification
....................... 219
Engine Oil
........................................ 184
Additives
........................................ 186
1 Capacity ......................................... 227
Through Deep Standing Water
....... 60
Emergencies. Braking in
.................. 130
Emergencies. Steering in
................. 131
Checking & Adding ....................... 184
Disposing of Used Oil
................... 187
Energy Conserving
........................ 186
Filter
.............................................. 186
Pressure Gage .................................. 95
Starburst
........................................ 185
Warning Light
.................................. 94
When to Change
............................ 186
Engine Overheating ......................... 158
Engine Specifications
....................... 232
Engine Starting
.................................. 59
Ethanol in Gasoline
......................... 177
Exhaust Dangerous Gas in
............. 57. 69. 142
Parking with the Engine
Running
.................................. 68. 70
Expectant Mothers. Use
of Safety
Belts
................................................. 27
Expressway Driving
......................... 137
Extender. Safety Belt
......................... 46
Exterior Appearance (see
Appearance
Fabric Cleaning (see Appearance Care)
Fan Warnings ........................... 152. 181
Filling the Fuel Tank ........................ 179
Filter Air
.................................................. 187
Fuel
................................................ 233
Oil
.......................................... 186. 233
Care)
Finish Care ....................................... 217
Finish Damage
................................. 217
Flash-to-Pass
...................................... 79
Flashers. Hazard Warning
............... 150
Flat Tire ............................................ 165
Flooded Engine
.................................. 60
Fluid Automatic Transaxle
..................... 188
Bralte .............................................. 194
Capacities
...................................... 227
Power Steering
.............................. 192
Windshield Washer
....................... 193
Fluids
& Lubricants ................. 229. 248
Fog Lights
.................................. 80. 204
Fold-Down Storage Compartment
.... 83
Foreign Material ................................ 217
Freeway Driving
............................... 137
French Language Manual
.................... 2
Fuel ................................................... 177
Alcohol in Fuel
.............................. 177
Capacity
................................. 179. 272
Exhaust Warnings
................... 57. 142
Filling Your Tank
.......................... 179
Fuels with Alcohol
........................ 177
Gage
................................................. 93
In Foreign Countries
..................... 178
Low Fuel Warning Light
................. 98
Requirements
................................ 177
Fuses
& Circuit Breakers ................ 220
L
265

I
Stoplight. Inside .................... 215. 216
Taillights
.......................... 77. 202. 203
Turn Signal
.................................... 146
Warning Lights
.......................... 91. 98
Loading Your Vehicle
...................... 205
Lock Finder
........................................ 56
Locks. Door
........................................ 51
Locks. Remote Control ...................... 52
Lockout Control Switch. Power
Window
............................................ 72
Long Distance Driving
.................... 138
Low Battery ........................................ 98
Low Coolant Warning Light
.............. 94
Low Oil Level Light
........................... 94
Luggage Carrier
.................................. 87
Low
Fuel Warning Light
.................... 98
M- aintenance
Replacement Parts
......................... 233
Schedule
........................................ 235
Services. Scheduled
...................... 237
When Trailer Towing
.................... 148
Malfunction Indicator Lamp
............. 97
Manual Front Seat
............................. 12
Master Cylinder. Brake
.................... 194
Methanol in Gasoline
...................... 177
Mileage Indicator (see
Odometer G
Speedometer)
Mirrors
Convex Outside
............................... 81
Inside Manual Daymight ............... 81
Manual Adjust ................................. 82
Manual Remote Control
................. 82
Power Remote Control
.................... 82
Visor Vanity ..................................... 83
Mountain Driving 139
............................
N et,
Convenience ............................ 57
New Vehicle Break-In
............... 58. 144
Night Driving
................................... 134
Octane Requirements (see
Fuel)
Odometer ........................................... 92
Oil. Engine
....................................... 184
Capacity
......................................... 227
Pressure Gage
.................................. 95
Quality
........................................... 185
Thickness
....................................... 186
Used
Oil ......................................... 187
When to Change ............................ 186
Oil Warning Light
........................ 94. 98
Outside Rearview Mirrors
................. 82
Overdrive. Automatic
........................ 65
Overheated Engine
.......................... 158
Overheated Engine Coolant Warning
Light
................................................. 94
Owner Checks
& Services ............... 244 Paint
Chemical Spotting
......................... 218
Finish Care
.................................... 217
Finish Damage
.............................. 217
Park. Shifting Into
Column Shift
................................... 67
Console Shift
................................... 68
Over Things That Burn
................... 69 .
With the Engine Running ......... 68. 70
Parking
Parking
Brake
..................................... 66
PASS-Key*II
...................................... 55
Passenger Belts (see Safety Belts)
Passing .............................................. 132
Polishing and Waxing (see
Appearance
Power Antenna ................................ 124
Power Door Locks
............................. 52
Power Mirrors
.................................... 82
Power Seat Controls
.......................... 13
Power Steering
......................... 192, 226
Power Steering Fluid
....................... 192
Power Windows
............................... 226
Power Window Lockout Control
Switch
.............................................. 72
Problems on the Road
...................... 149
Publications (see
Service Publications)
Care)
Pregnancy, Use of Safety Belts During ... 27
Pulse Windshield Wipers
................... 76
.
267