What are the causes and solutions of abnormal sound when stepping on the accelerator?

The causes and solutions of abnormal sound when stepping on the accelerator are as follows: 1. Abnormal sound of gasoline pump motor: When there is wear or impurity inside the gasoline pump motor, stepping on the accelerator will make abnormal sound. This problem requires replacing the gasoline pump. 2. Abnormal sound of throttle: The throttle is controlled by electronic throttle, which is naturally a motor. When the motor gear is worn, insufficient meshing will produce abnormal sound. When there is too much carbon deposition in the throttle, it will also cause abnormal noise in the throttle. The throttle can be cleaned. If the motor is damaged, it is necessary to remove the throttle and replace the servo motor.