1990 Oldsmobile Cutlass Supreme Service and Repair Manual

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Factory-Grade Data

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

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Vehicle Safety Data

1990 Oldsmobile Cutlass Supreme Recalls & Complaints

NHTSA #06E04300019/05/2006Component: FUEL SYSTEM, GASOLINE

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

Consequence

THIS CONDITION MAY CAUSE AN INADEQUATE SEAL AT THE CONNECTION, POTENTIALLY LEADING TO A FUEL LEAK. I

Remedy

HONEYWELL WILL NOTIFY OWNERS AND REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL BEGAN ON OCTOB

NHTSA #00V18900011/07/2000Component: STRUCTURE

VEHICLE DESCRIPTION: PASSENGER VEHICLES ORIGINALLY SOLD OR CURRENTLY REGISTERED IN THE STATES OF CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA,

Consequence

IF BOTH BOLTS PULL THROUGH, THE FRONT OF THE CRADLE WOULD NO LONGER BE SUPPORTED AT THE MOUNTING LOC

Remedy

DEALERS WILL REPLACE THE FRONT AND REAR FRAME/CRADLE BOLTS AND RETAINERS.

TSB #615073

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

TSB #6088680

CUSTOMERS MAY COMPLAIN OF GRINDING / SCRAPING / GROANING NOISE FROM REAR SUSPENSION. *TT

20010907Component: VEHICLE SPEED CONTROLCrash reported

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

20010907Component: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITEDCrash reported

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

19990526Component: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITEDCrash reported

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

19990311Component: STRUCTURE:FRAME AND MEMBERSCrash reported

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

20041207Component: ELECTRICAL SYSTEM:WIRING: REAR COMPARTMENT/TRUNKFire reported

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.

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