Why does the Baojun 730 have extremely loud engine noise when driving at 100 km/h?
1 Answers
Possible reasons for extremely loud engine noise include: Engine mount rubber aging or loosening: The engine mount rubber refers to the rubber blocks placed between the engine and the vehicle frame. Its functions are: To reduce vibration and provide cushioning during engine operation, as well as to secure the engine in place. If the engine mount rubber becomes aged or loose, the engine will start to vibrate, and the faster the speed, the louder the vibration noise will be. Solution: Tighten or replace the engine mount rubber. Improper engine oil usage: If the viscosity of the engine oil does not match the engine, it can easily lead to carbon buildup, causing the engine noise to increase. If the oil viscosity is too low, it can result in insufficient lubrication, leading to wear and abnormal noise in engine components. If the oil viscosity is too high, it can cause excessive engine load, also resulting in noise. Engine misfire: Engine misfire mainly refers to one or more cylinders in the engine not functioning properly. Common symptoms include: Noticeable intermittent exhaust gas flow from the vehicle, along with severe shaking of the exhaust pipe, and a clear "popping" or thumping sound from the engine. Solution: Inspect the condition of each ignition coil and the spark plugs in the cylinders.
