Reasons for a Thud Sound When Accelerating from a Start in an Automatic Transmission
1 Answers
Reasons for a thud sound when accelerating from a start in an automatic transmission: 1. Transmission issues, including loose drive shaft, transmission wear, worn output shaft inside the transmission, or worn transmission gears. 2. Gear shift position malfunction. Tips for starting an automatic transmission car: 1. Without pressing the foot brake, press the start button twice to initiate the car's computer system self-check, lasting at least 6 seconds. 2. Press the foot brake and press the start-stop button to ignite. 3. Release the foot brake and warm up the car in place. 4. Press the foot brake, release the handbrake, and shift the gear from P to D (if starting on a slope, to prevent rolling back, first shift to D, lightly press the accelerator, slowly release the handbrake, then start smoothly). 5. Gradually release the foot brake to start. 6. Depending on road conditions, steadily press the accelerator to speed up and drive safely.