Is there any good way to solve the abnormal noise of the engine?

Abnormal engine noise will bring us a lot of trouble, so we need to check and maintain it. The following are some causes and solutions of abnormal engine noise: the abnormal engine noise is generally one of the abnormal engine noise. After replacing high viscosity engine oil, the engine may "shake" because of high viscosity and large internal resistance, and the impact on the engine is still unclear. However, when the hydraulic tappet fails, the engine will have a serious abnormal "jitter" sound, which is caused by the hydraulic tappet failure. There are many reasons for the abnormal sound of the engine, which may be carbon deposition in the engine throttle, blockage of exhaust system, spark plug failure, muffler problem, cooling system failure, etc. Therefore, it is necessary to contact the local 4S store for testing and maintenance. The causes of engine lag sound may be caused by problems such as air filter, spark plug, gasoline, gasoline filter, gasifier and oil pump. We need to check whether the air filter is dirty, whether the spark plug is aging, whether it must be replaced, whether the ignition coil is broken, whether the gasoline is clean, whether there is water in the oil circuit and so on. , as well as oil pump and carburetor. When the engine is running, the acceleration is normal and the ignition may be normal. However, when the engine is running at a constant speed, the engine speed does not seem to increase. It may be that the hydraulic pressure is too high or too low, or there is something wrong with the ignition cycle setting. In addition, it may also be an internal problem of the engine, such as EGR valve blockage. If the engine clangs, it may be overheating. We need to check the cooling system, and we also need to pay attention to the problems such as blockage of exhaust system, air leakage and fracture of vacuum tube. To sum up, we need to check and repair the abnormal sound of the engine to ensure the normal operation of the vehicle.