What causes abnormal noise in the Lavida's cold engine?
1 Answers
Lavida's cold engine abnormal noise mainly has the following reasons: 1. Generator belt is too loose or has foreign objects: When starting a cold engine, if the belt is too loose, it can cause severe slippage, resulting in friction and abnormal noise; foreign objects in the belt, such as sand or small stones, can also cause abnormal noise. 2. Fuel pump failure: A faulty fuel pump can easily lead to low oil pressure, poor atomization of the fuel injector, causing an imbalance in the air-fuel mixture ratio and incomplete combustion, resulting in engine abnormal noise. 3. Oil pump bearing failure: A faulty oil pump can cause low oil pressure in the lubrication system, leading to problems in the circulation of lubricating oil, insufficient lubrication, and dry friction in the engine, causing abnormal noise.