Release the throttle, click, click, click.

There is abnormal sound when the accelerator is released, which is caused by excessive valve clearance, damaged fuel injector and damaged carbon canister solenoid valve. If this phenomenon occurs in the process of cold car to hot car for about three minutes, it is abnormal noise caused by large valve clearance and poor lubrication of cold car.

If the car makes abnormal noise when refueling and speeding up, it may also be a problem with the oil, either because the oil has not been changed for too long, or the quality or model of the oil is not up to standard, or because of oil leakage and lack of oil. Engine oil lubricates and cools the engine, which is the heart of the car, and engine oil is blood.

Generally, when a car starts cold, the engine will make a "beep" sound, which is slightly louder than that of a hot car. This is because after parking overnight, the oil will flow back to the oil pan. When the engine starts, although there is engine oil in the oil circuit, it is impossible to establish effective engine oil pressure at the first time, and there is no effective oil film between parts, resulting in a "beep" sound when the engine starts. This is a normal phenomenon.

Solution to abnormal sound caused by loose throttle: It is suggested to check whether the valve clearance is too large, whether the fuel injector is damaged, and whether the carbon canister solenoid valve is faulty. It is recommended to go to the 4S shop for maintenance inspection. If the abnormal noise of the vehicle occurs between the cold car and the hot car and lasts for about 3 minutes, it is the abnormal noise caused by poor lubrication of the valve of the cold car. Million car purchase subsidy