1985 Buick Century 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
- Estate Wagon Wagon 4-Door
- Base Sedan 4-Door
- Custom Wagon 4-Door
- T-Type Coupe 2-Door
- Custom Coupe 2-Door
- T-Type Sedan 4-Door
- Limited Coupe 2-Door
- Custom Sedan 4-Door
- Limited Sedan 4-Door
- Base Coupe 2-Door
Engines covered
- 2.8L 173Cu. In. V6 GAS OHV Naturally Aspirated
- 3.8L 3800CC 231Cu. In. V6 GAS OHV Naturally Aspirated
- 3.0L 181Cu. In. V6 GAS OHV Naturally Aspirated
- 2.5L 2474CC 151Cu. In. l4 GAS OHV Naturally Aspirated
- 4.3L 260Cu. In. V6 DIESEL 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
CONSUMER WAS PARKING AND OVERHEATED CAR CAUGHT ON FIRE . TT
VEHICLE FIRE IN ENGINE COMPARTMENT, ORIGINATING IN VICINITY OF BATTERY, OHIO STATE POLICE REPORT. *TW
ITIS VERY DIFFICULT TO TURN STEERING WHEEL. DEALER REPAIRED POWER STEERING ONCE UNDER A RECALL. CONSUMER STATED PROBLEM HAS REOCCURRED. PLEASE PROVIDE ANY FURTHER INFORMATION.*AK
ENGINE MOTOR BLOCK CRACKED.
WHILE DRIVING THE REAR RIGHT BRAKE CALIPER BROKE AND WAS DIFFICULT TO STOP. PRIOR TO THIS, THE LEFT SIDE HAD BRAKE FLUID LEAKAGE. *AK
Showing the 5 most serious of 9 complaints filed with NHTSA.
