What is the abnormal noise of Haval H8 engine? Solve?

1, abnormal noise of hot car: If the owner is vigilant, it is difficult for the owner to tell where the abnormal noise comes from when driving, it is best to go to the 4S shop to eliminate the problem. When abnormal noise occurs, the engine power is normal, there is no weakness symptom, the tail gas color is normal, and there is no blackening and whitening phenomenon, indicating that the problem is not serious and the in-cylinder fault can be eliminated.

2. Abnormal noise of the cold car: When the cold car is in the car, you often hear abnormal noise from the engine compartment, but it disappears after the hot car. This is because the car has been parked for a long time, and the oil basically flows back to the oil pan. During the cold start, the oil can not form an effective oil film, nor can it establish an effective oil pressure. At this time, the metal parts inside the engine collided and made a slight impact sound. Common engine faults

3. The engine shakes when it is hot, and shakes when it is idling. There are many reasons for idling vibration of hot cars, the most common one is engine fire. Generally, check whether the spark plug, ignition coil, oil nozzle, oil circuit and exhaust are blocked, whether the fuel label matches, whether the engine carbon deposit is removed, whether the throttle carbon deposit is removed, and whether the engine rubber block is firm.

4. Engine carbon deposit. The formation of carbon deposit is mainly due to incomplete combustion when the engine does work. Coupled with the colloidal substances produced by impurities in fuel and engine oil during combustion, carbon deposits are formed over time. Carbon deposition will cause engine jitter, engine jitter at idle speed, power performance degradation, increased fuel consumption, difficult start-up, unstable idle speed, poor acceleration, excessive exhaust and increased fuel consumption. This solution can be alleviated by removing carbon deposits.