Buick Regal 2011-2017 Drivetrain Specifications

The 2011-2017 Buick Regal features a variety of drivetrain options. The base model includes a 2.4L Ecotec I4 engine with a 6-speed automatic transmission, delivering 182 horsepower. Higher trims offer a 2.0L turbocharged I4 engine with a 6-speed manual or automatic transmission, producing 220 horsepower. The drivetrain includes front-wheel drive as standard, with all-wheel drive available on select models. The system is compatible with synthetic oil, and the transmission fluid should be replaced every 60,000 miles. The drivetrain is designed for optimal performance in both city and highway driving conditions.

Regular maintenance is essential for the longevity of the drivetrain. Oil changes should be performed every 5,000 to 7,500 miles using synthetic oil. Transmission fluid should be checked every 15,000 miles and replaced every 60,000 miles. CV axles and joints should be inspected every 30,000 miles, and the driveshaft should be checked for balance and alignment. Tire rotations should be done every 7,500 miles to ensure even wear. Proper maintenance ensures optimal performance and prevents premature wear on drivetrain components.

Replacing drivetrain components requires proper tools and expertise. For CV axles, raise the vehicle, remove the wheel, and disconnect the axle from the hub and transmission. For the driveshaft, support the vehicle, mark the driveshaft position, and carefully remove it. Always refer to the service manual for specific instructions. Use a torque wrench to ensure proper bolt tightening. After replacement, test drive the vehicle to ensure smooth operation. Improper installation can lead to vibration or damage to other components.

Common drivetrain issues include vibrations, noises, or loss of power. Check for uneven tire wear, loose bolts, or damaged CV axles. Use a diagnostic scanner to check for fault codes in the transmission control module. Inspect the driveshaft for balance issues or damage. Listen for unusual noises during acceleration or deceleration. Addressing these issues promptly can prevent further damage. If symptoms persist, consult a certified mechanic for professional diagnosis.

Optimize drivetrain performance by using high-quality synthetic oil and ensuring proper tire inflation. Avoid aggressive driving and extreme loads. Upgrade to performance-oriented transmission fluid for improved shifting. Consider aftermarket components like lightweight driveshafts or high-strength CV axles. Regularly check and maintain proper alignment to reduce wear. Performance tuning of the engine and transmission can also enhance drivetrain efficiency and responsiveness.