There is virtually no abnormal noise when the car is empty. Sometimes it will be heard on bad roads, but the car is loaded, which means that when loading, there will definitely be some abnormal noises in the area where the speed is 1400-1600, and there will be some rumblings like this. But when the speed exceeds this area or is lower than this area, there is no abnormal sound... I would like to ask car friends to suggest that the 4S can be checked locally and there is no problem . There is basically no abnormal noise when the car is empty. Sometimes there are some on bad roads, but the car is loaded, which means that when loading, there will definitely be abnormal noises and rumbles in the vehicle. zone between 1400 and 1600, but if the speed exceeds this zone or is lower than this zone, there will be no abnormal noises of this type... If youplease, riders suggest that the 4S can be checked locally to see if there is a problem with the air. filter resonance, especially evident when starting the car in cold winter weather! @2019
It may be that the carbon brush inside the starter is defective, the hydraulic pressure inside the engine cylinder head and the valve clearance are too high, the screws of the lower engine protection plate are loose, etc.
The specific reasons why Great Wall Fengjun 5 beeps after starting in winter are as follows: 1. The carbon brush inside the starter is defective. The working principle of the starter is that once power is applied, the electromagnet works to combine the starter gear with the engine flywheel. After starting the engine, the gear will quickly return to its original position. Starter gear nIt does not come back quickly, it will mesh with the flywheel It emits then beeps abnormally.
2. The gap between the hydraulic pressure inside the engine cylinder head and the valve is too large. Since the vehicle has traveled many miles and been used for a long time, the engine valves and hydraulic pressure will wear out to a certain extent. If the gap is too large, abnormal noise will occur.
3. The lower engine skid plate screws are loose. When the motor protection plate screws are loose, there will also be abnormal noise when starting.