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

There is abnormal sound when stepping on the accelerator, one is because there is something wrong with the automobile gasoline pump, and the other is that there is abnormal sound when stepping on the accelerator. Not only that, the bearing of the accelerator pedal is poorly lubricated, and the driver will make noise when stepping on the accelerator. If it is abnormal noise caused by poor lubrication, just grease the bearing. Here's a detailed introduction to the cause of abnormal sound when stepping on the accelerator: 1. When the gasoline pump motor is worn or contains impurities, it will make the gasoline pump motor make abnormal noise, so that when the car is driving, stepping on the accelerator will make noise. At this time, the abnormal sound problem can be solved only by replacing the gasoline pump. 2. If the motor gear of the throttle is worn and the gear is not fully meshed, or the throttle is abnormal due to too much sludge in the throttle, you can clean the throttle or replace the servo motor in the throttle to solve the abnormal sound problem. As long as the accelerator is not damaged, stepping on the accelerator will not make noise.