1987 Oldsmobile Calais 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
- Base Sedan 4-Door
- Supreme Sedan 4-Door
- GT Sedan 4-Door
- GT Coupe 2-Door
- Base Coupe 2-Door
- Supreme Coupe 2-Door
Engines covered
- 2.3L 138Cu. In. l4 GAS DOHC Naturally Aspirated
- 3.0L 181Cu. In. V6 GAS OHV Naturally Aspirated
- 2.5L 2474CC 151Cu. In. l4 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 FUEL FEED OR FUEL RETURN HOSE AT THE ENGINE MAY RUB AGAINST A SHIFT LEVER ON THE 5 SPEED TRANSAXLE.
IN TIME A HOLE COULD BE RUBBED THROUGH THE HOSE AND FUELLEAK INTO THE ENGINE COMPARTMENT. THIS COUL
REPLACE THE FUEL FEED AND RETURN HOSE/PIPE ASSEMBLIES.
INFORMATION REGARDING SNOW INTRUSION INTO REAR DRUM BRAKE ASSEMBLIES. **MR
RATTLING NOISE/ENGINE OVERHEATING. *TW
RATTLING NOISE/ENGINE OVERHEATING. *TW
ENGINE COMPARTMENT FIRE. *SD
WHILE DRIVING, THE ENGINE CAUGHT FIRE. PLEASE DESCRIBE. *AK
OIL PUMP/BALANCER ASSEMBLY ON 2.5L 151CI. TECH 4 (NOT SURE ON SPECIFIC YEARS) CAN CRACK FROM NORMAL WEAR, AND DESTROY CRANK SHAFT AND ENGINE. THE BALANCER ASSM. AND OIL PUMP ARE LOCATED IN OIL PAN.
TIMING GEAR REPLACED DUE TO TEETH SHEARING, CAUSING NO POWER STEERING/BRAKES/ENGINE. *SD
Showing the 4 most serious of 6 complaints filed with NHTSA.
