1989 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
- Base Coupe 2-Door
- International Coupe 2-Door
Engines covered
- 2.8L 173Cu. In. V6 GAS OHV Naturally Aspirated
- 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
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.
CUSTOMERS MAY COMPLAIN OF GRINDING / SCRAPING / GROANING NOISE FROM REAR SUSPENSION. *TT
WHILE SLEEPING IN VEHICLE IN AN OPEN AIR PARKING LOT WITH HEATER AND MOTOR ON CONSUMER DIED OF CARBON MONOXIDE POISIONING, MOTOR CONTINUED RUNNING UNTIL CATALYTIC CONVERTER OVERHEATED RESULTING IN FIR
THE ENGINE CRADLE FELL OFF CONSUMER 1989 OLDSMOBILE CUTLASS SUPREME. *TS THE CRADLE FELL DROPPING THE ENGINE DUE TO CONDENSATION FORMING BETWEEN THE RUBBER MOUNTING SUPPORTS AND THE METAL FRAMEWORK.
DT:CONSUMER WAS CLIMBING A HILL AT 5% GRADE FIVE MILES LONG ON FREEWAY WHEN TRANSMISSION SHIFTED DOWN FROM OVERDRIVE TO SECOND GEAR AND LOCKED IN SECOND. TRANSMISSION WOULD NOT COME OUT OF SECOND GEAR
Showing the 3 most serious of 29 complaints filed with NHTSA.
