What happened to the rustling of the engine

When driving the vehicle, it is found that the engine has abnormal sound. In the face of such problems, it is necessary to find the cause in time and maintain and deal with it. What about the rustling noise in the engine?

1. The sound of the car's valve. When the car starts cold, the water temperature and oil temperature in the car are relatively low, and the lubrication degree and viscosity of the oil are not enough, so it is easy to lead to the top cylinder can not be adjusted normally, which makes the rustling friction from the engine abnormal sound.

2. Hydraulic tappet of the car. If the hydraulic tappet of the car is badly worn, or the oil pressure of the car oil is too low, air may enter the tappet, so the owner will hear the abnormal sound from the car engine.

3. The front cover of the engine is installed abnormally. The engine's rustling noise may also be due to the fact that its front cover is not properly assembled, so the car's power output rises when it starts cold. If this is the case, then it is recommended that the owner let the maintenance shop reassemble the front cover of the engine to solve the problem of abnormal sound.