1990 Oldsmobile Cutlass Supreme 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
- SL Coupe 2-Door
- SL Sedan 4-Door
- Base Sedan 4-Door
- International Sedan 4-Door
- Base Coupe 2-Door
- International Coupe 2-Door
Engines covered
- 3.1L 189Cu. In. V6 GAS OHV Naturally Aspirated
- 2.3L 138Cu. In. l4 GAS DOHC Naturally Aspirated
- 2.3L 140Cu. In. l4 GAS DOHC 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
CERTAIN REPLACEMENT FUEL FILTERS, FRAM BRAND NAME P/N G3727, WITH DATE CODES X52911 THROUGH X60801 SEQUENTIALLY OR X600141 AND A MEXICO COUNTRY OR ORIGIN MARKING ON THE FUEL FILTER HOUSING MANUFACTURE
THIS CONDITION MAY CAUSE AN INADEQUATE SEAL AT THE CONNECTION, POTENTIALLY LEADING TO A FUEL LEAK. I
HONEYWELL WILL NOTIFY OWNERS AND REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL BEGAN ON OCTOB
VEHICLE DESCRIPTION: PASSENGER VEHICLES ORIGINALLY SOLD OR CURRENTLY REGISTERED IN THE STATES OF CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA,
IF BOTH BOLTS PULL THROUGH, THE FRONT OF THE CRADLE WOULD NO LONGER BE SUPPORTED AT THE MOUNTING LOC
DEALERS WILL REPLACE THE FRONT AND REAR FRAME/CRADLE BOLTS AND RETAINERS.
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
CUSTOMERS MAY COMPLAIN OF GRINDING / SCRAPING / GROANING NOISE FROM REAR SUSPENSION. *TT
BRAKE CLUB WAS ATTACHED TO BRAKES AND CONSUMER STARTED VEHICLE, AND VEHICLE SPEEDED UP/ HIT THREE, AND VEHICLE STOPPED ON IMPACT. DEALERSHIP WAS AWARE OF PROBLEM PRODUCT COMPANY WAS A LAWMA
BRAKE CLUB WAS ATTACHED TO BRAKES AND CONSUMER STARTED VEHICLE, AND VEHICLE SPEEDED UP/ HIT THREE, AND VEHICLE STOPPED ON IMPACT. DEALERSHIP WAS AWARE OF PROBLEM PRODUCT COMPANY WAS A LAWMA
CONSUMER WAS DRIVING APPROXIMATELY 18-20 MPH ON THE OFF RAMP. WHILE MERGING INTO HIGHWAY A NOISE CAME FROM DASH AREA, AND DASH FLICKERED AND WENT OUT ELECTRICALLY. THE NOISE AND FLICKER COINCIDED WITH
ON APR.12,1996,MY GIRLFRIEND WAS DRIVING ON THE EXPRESSWAY WHEN SHE FELT VIBRATION IN THE STEERING WHEEL SHE IMMEDIATELY DROVE HOME AND ASKED ME TO CHECK ON IT. I DROVE THE CAR FOR ONE BLOCK NOTICEING
CONSUMER NOTICED THAT FIRE WAS COMING FROM THE SIDE OF THE TRUNK. FIRE DEPARTMENT WAS NOTIFIED, AND IT WAS DETERMINED THAT THE ANTENNA WIRES CAUSED THE FIRE.*AK
Showing the 5 most serious of 42 complaints filed with NHTSA.
