Buick Regal 1997-2004 Body Specifications

The 1997-2004 Buick Regal is available with a 3.8L V6 engine producing 200-240 horsepower and 225-280 lb-ft of torque, depending on the model year and trim. It features a front-wheel-drive layout with a 4-speed automatic transmission. The vehicle has a fuel capacity of 17.5 gallons and a curb weight ranging from 3,500 to 3,800 pounds. It is compatible with regular unleaded gasoline and has an estimated EPA rating of 18-20 MPG city and 28-30 MPG highway.

Regular maintenance for the 1997-2004 Buick Regal includes oil changes every 5,000-7,500 miles using 5W-30 synthetic oil, tire rotations every 7,500 miles, and brake inspections every 12,000 miles. Spark plugs should be replaced every 100,000 miles, and the timing belt should be replaced at 105,000 miles. Coolant should be flushed every 50,000 miles, and the air filter should be replaced every 15,000-30,000 miles. It is essential to follow the maintenance schedule outlined in the owner's manual to ensure optimal performance and longevity.

To replace the air filter, open the hood and locate the air filter housing on the driver's side. Release the clips or screws holding the housing, remove the old filter, and install the new one. For more complex replacements, such as the timing belt, refer to the service manual for step-by-step instructions. Always disconnect the battery before starting any electrical or major mechanical work. Use genuine Buick parts or equivalent aftermarket parts to ensure compatibility and performance.

If the vehicle is experiencing rough idling or decreased performance, check the air filter, spark plugs, and fuel injectors for cleanliness or damage. If the check engine light is on, use a scan tool to retrieve trouble codes and diagnose the issue. For transmission issues, ensure the fluid level is correct and inspect for leaks. If the vehicle overheats, check the coolant level, radiator, and hoses for blockages or damage. Consult the service manual or a certified technician for advanced diagnostics and repairs.

To optimize performance, ensure regular tune-ups, including spark plug and air filter replacements, are performed. Maintain proper tire pressure for improved fuel efficiency and handling. Use high-quality fuel and consider upgrading to a performance-tuned exhaust system or cold air intake. For enhanced engine performance, consult with a mechanic about possible engine modifications or tuning. Always follow manufacturer recommendations and safety guidelines when making modifications.