1993 Oldsmobile Cutlass service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Electrical coverage with wiring diagrams
- Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more
Trims covered
- Eurosport Coupe 2-Door
- Base Sedan 4-Door
- Lujo Sedan 4-Door
- Eurosport Sedan 4-Door
- Lujo Coupe 2-Door
- Base Coupe 2-Door
Engines covered
- 3.1L 189Cu. In. V6 GAS OHV Naturally Aspirated
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
THE BRAKE HOSES WERE MANUFACTURED INCORRECTLY, AND DO NOT COMPLY WITH FMVSS 106, "BRAKE HOSES."
THE IMPROPERLY MANUFACTURED BRAKE HOSES CAN CAUSEREDUCED BRAKE EFFECTIVENESS AND/OR UNEVEN BRAKING,
REPLACE THE RIGHT FRONT BRAKE HOSE ASSEMBLY ON CIERA AND CENTURY MODELS, AND BOTH REAR BRAKE HOSES O
THESE VEHICLES WERE ASSEMBLED WITH REAR OUTBOARD SAFETY BELT ANCHORAGES THAT MAY NOT WITHSTAND THE REQUIRED LOAD. THIS DOES NOT COMPLY WITH FMVSS NO.210, "SEAT BELT ASSEMBLY ANCHORAGES."
CONSEQUENCE OF NON-COMPLIANCE: IN A COLLISON, STRESS CAN CAUSE THE ATTACHMENT METAL TO TEAR AND ALL
DEALERS WILL REPLACE THE EXISTING ANCHOR BOLTS WITH A NEW SHOULDER BOLT AND THREAD LOCKING ADHESIVE.
Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
OWNERS OF SOME VEHICLES EQUIPPED WITH HYDRA-MATIC 3T40, 4T60, 4T60-E OR 4T65-E TRANSAXLES MAY COMMENT ON A GRINDING AND / OR GROWLING NOISE THAT IS NOTICEABLE WHEN STANDING IN PARK ON A HILL OR SLOPE WITH THE ENGINE RUNNING AND THE PARKING
VOLUNTARY EMISSION CAMPAIGN INVOLVING THE EVAPORATIVE EMISSION CANISTER PURGE SOLENOID VALVE REPLACEMENT AND, CONVERTIBLE ONLY, PROM REPLACEMENT. *TT
SOME V6 ENGINES MAY, ON A VERY INFREQUENT BASIS, HAVE AN OIL ODOR CONDITION THAT IS GENERALLY ENCOUNTERED AFTER THE ENGINE'S OIL HAS BEEN CHANGED.TYPICALLY THE ODOR LASTS APPROXIMATELY 1000 MILES AFTER THE CHANGE OF OIL AND THEN DOES NOT RE
SOME VEHICLES EQUIPPED WITH HYDRA-MATIC 3T40, 4T60 OR 4T60-E TRANSXALES MAY COMMENT ON A GRINDING AND / OR GROWLING NOISE THAT IS NOTICEABLE WHEN IN PARK ON INCLINE. *TT
CUSTOMERS MAY COMPLAIN OF GRINDING / SCRAPING / GROANING NOISE FROM REAR SUSPENSION. *TT
EXCESSIVE OIL CONSUMPTION (REPLACE PCV HARNESS). *TW
EVAPORATIVE EMISSION CANISTER PURGE SOLENOID VLAVE REPLACEMENT AND CONVERTIBLE ONLY, PROM REPLACEMENT. *YC
Showing the 8 most recent of 29 technical service bulletins on file with NHTSA.
I ATTEMPTED TO BRAKE FOR A TURNING CAR AND WAS UNABLE TO SLOW DOWN. MY MECHANIC SAID THAT THE REAR BRAKE CALIPERS WERE SEIZED.*AK
ON JUNE 10TH, TWO DAYS AGO, I TOTALED MY 93 OLDSMOBILE CUTLASS SUPREME ON I-93 IN NEW HAMPSHIRE. WHILE MY YEAR (93) HAS NOT BEEN RECALLED, 88 -91 WERE ALL RECALLED FOR SEPARATION OF THE STEERING INT
CONSUMER WAS IN AN ACCIDENT AND DRIVER SIDE AIR BAG DIDN'T DEPLOYED . TT
CONSUMER WAS TURNING INTO DRIVEWAY WHILE TRAVELING 5MPH AND VEHICLE STARTED TO ROAR UP AND SPEED UP. IT HIT NEIGHBOR'S VEHICLE. DEALERSHIP WAS AWARE OF PROBLEM. *AK
VEHICLE WAS INVOLVED IN AN ACCIDENT, DRIVERS FRONT SIDE WAS HIT AT 35MPH. THE DRIVER'S AIR BAG DID NOT DEPLOY UPON IMPACT. GM WAS CONTACTED AND TOOK INFORMATION. *AK
Showing the 5 most serious of 193 complaints filed with NHTSA.
