2003 Buick Century Service and Repair Manual
- Digital manual
- Matched to your model
- Pay once, yours to keepPay once
- 180-day refund
Unlock the full manual
2003 Buick Century Service and Repair Manual
This factory service and repair manual for the 2003 Buick Century covers the one trim listed for the year, Custom, on a 4-door sedan body. Its engine is a naturally aspirated 3.1L V6 with overhead valves that burns gasoline. Torque values and specifications are given for that V6, with procedures for the engine, fuel, ignition and cooling systems, the transmission, brakes, suspension and steering, and wiring diagrams for the body.
Engines covered
- 3.1L V6 (189 cu in) — OHV, naturally aspirated, gasoline
Body styles covered
- 4-door sedan
Trims covered
- Custom
Known issues on the 2003 Century. Exterior lighting leads the 126 complaints NHTSA holds for the 2003 Century, accounting for 48 of them. The electrical system follows with 23, then the engine and engine cooling with 13, hydraulic service brakes with 12 and structure with 11. Four complaints reported a crash, 2 an injury and 2 a fire. For owners chasing those concerns, the manual gives wiring diagrams and diagnostics for the electrical system and lighting, and procedures, specifications and torque values for the cooling system, brakes and body structure.