What is the abnormal sound of the car throttle?

Cause of abnormal sound of automobile fuel filler door: 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: At present, electronic throttle is used to control the opening and closing of the valve. Naturally, it is 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. 3. Abnormal sound caused by poor lubrication of the accelerator pedal bearing: You can grease the bearing. 4. The clutch release bearing is damaged, the clutch plate is not completely separated, and there is abnormal sound: remove the clutch and replace the release bearing.