What is the reason for the abnormal sound of the car stepping on the accelerator?

The causes of abnormal sound of automobile stepping on the accelerator are abnormal sound of gasoline pump motor; Abnormal throttle sound; Abnormal sound caused by poor lubrication of accelerator pedal bearing; Clutch release bearing is damaged. The following are related contents: Abnormal noise of gasoline pump motor: When the gasoline pump motor is worn or there are impurities inside, the owner will make abnormal noise when stepping on the accelerator. This problem requires replacing the gasoline pump. Abnormal sound of throttle: Now the throttle is electronic, and the motor naturally controls the opening and closing of the valve. When the motor gear is worn, it is not fully meshed, resulting in abnormal sound. When the throttle deposits too much sludge, it will also cause abnormal noise of the throttle. The throttle can be cleaned. If the motor is damaged, it is necessary to remove the throttle and replace the servo motor. Poor lubrication of accelerator pedal bearing: When abnormal noise is generated due to poor lubrication of accelerator pedal bearing, grease should be added to the bearing for lubrication. Clutch release bearing damage: resulting in incomplete separation of clutch plates and abnormal noise. Remove the clutch and replace the release bearing.