What is the reason for the noise when stepping on the accelerator?

What caused the noise when stepping on the gas pedal? The noise when stepping on the accelerator is because: 1. Abnormal noise of gasoline pump motor. 2. The throttle sound is abnormal. 3. Abnormal sound caused by poor lubrication of accelerator pedal bearing. 4. The clutch release bearing is damaged, resulting in incomplete separation of clutch plates and abnormal sound. Remove the clutch and replace the release bearing. 1. Abnormal sound of gasoline pump motor. The gasoline pump motor is worn or polluted, and we will make abnormal noise when stepping on the accelerator. This problem requires replacing the gasoline pump. 2. The throttle sound is abnormal. At present, all throttles are electronic throttles, and the opening and closing of valves are controlled by motors. When the motor gear is worn, it is not fully meshed, resulting in abnormal sound. Excessive carbon deposition in the throttle can also cause abnormal throttle sound. The throttle can be cleaned. If the motor is damaged, it is necessary to remove the throttle valve and replace the servo motor. If there is abnormal sound when stepping on the accelerator, first check whether the instrument or workbench is loose, and then check the transmission. If there is oil in it, the gearbox oil pump will make abnormal noise; In addition, the air filter element is not installed firmly, and the problem of the oil-gas separator will also cause abnormal sound when stepping on the throttle. It is recommended to go to the repair shop for detailed inspection and maintenance as soon as possible.