What Causes the Abnormal Noise When Accelerating Hard?

[DelPenelope]

The causes of abnormal noise when accelerating hard are as follows: 1. Fuel pump motor noise: When the fuel pump motor is worn or contains impurities, it can produce abnormal noise upon acceleration. This issue requires replacing the fuel pump. 2. Throttle body noise: Modern throttle bodies are electronic, controlled by a motor for opening and closing. If the motor gears are worn, improper engagement can cause abnormal noise. Excessive carbon deposits or sludge in the throttle body can also lead to noise. Cleaning the throttle body may resolve the issue, but if the motor is damaged, the throttle body must be disassembled to replace the servo motor.