Buick Century 1997-2005 Body Specifications

The 1997-2005 Buick Century features a 3.1L V6 engine producing 160-175 horsepower, with a 4-speed automatic transmission. It has a wheelbase of 107.8 inches, curb weight around 3,300 lbs, and a fuel capacity of 17 gallons. Suspension includes MacPherson struts front and rear, with disc brakes on all four wheels. Compatibility with GM parts is high, and it supports both RWD and optional AWD configurations.

Regular maintenance includes oil changes every 5,000-7,500 miles, tire rotations every 7,500 miles, and brake inspections every 12,000 miles. Spark plugs should be replaced every 30,000 miles, and the timing belt replaced at 60,000 miles. Fluid checks and filters should be done as specified in the owner's manual. Proper maintenance ensures longevity and performance.

To replace the air filter, locate the airbox under the hood, release the clips, and pull it out. Remove the old filter, insert the new one, and reassemble. For other parts like spark plugs, use a spark plug socket, gap new plugs to specs, and tighten securely. Always refer to the service manual for specific torque specs and procedures.

Common issues include faulty oxygen sensors, worn spark plug wires, and failing coolant temperature sensors. Troubleshoot by checking the dashboard warning lights, scanning for error codes with an OBD-II reader, and inspecting visually accessible components. Addressing these issues promptly can prevent more severe problems.

Optimize performance by ensuring proper tire pressure, regular tune-ups, and maintaining a clean air filter. Upgrading to high-performance spark plugs and wires can improve ignition efficiency. Lightening the vehicle by removing unnecessary weight and ensuring proper wheel alignment can also enhance handling and fuel efficiency.