1983 Buick Century Service and Repair Manual

This factory service and repair manual for the 1983 Buick Century addresses four trims, Base, Custom, Limited and T-Type, on a four-door sedan and a two-door coupe. The engine list mixes a gasoline 2.5L inline-four and gasoline V6s of 2.8L and 3.0L with a 4.3L V6 diesel, with overhead valves and no forced induction throughout. Specifications and diagnostics address the fuel system, and torque values and procedures run through the cooling system, transmission, brakes and steering.

Engines covered

• 2.5L inline-four (151 cu in) — OHV, naturally aspirated, gasoline
• 2.8L V6 (173 cu in) — OHV, naturally aspirated, gasoline
• 3.0L V6 (181 cu in) — OHV, naturally aspirated, gasoline
• 4.3L V6 (260 cu in) — OHV, naturally aspirated, diesel

Body styles covered

• 4-door sedan
• 2-door coupe

Trims covered

• Base
• Custom
• Limited
• T-Type

Known issues on the 1983 Century. One recall is on the federal record for the 1983 Century. On certain cars the brake proportioner valves could snap off the master cylinder, letting fluid escape and taking away part of the braking system; suspect valves were inspected and, where needed, replaced. A single owner complaint is also logged, touching the electrical system, exterior lighting, the power train, seat belts and seats. The brake hydraulics and electrical system are covered with procedures, specifications, torque values and wiring diagrams.