What Causes Engine Bearing Noise?

1 Answers
Isaac
07/30/25 10:20am
Engine bearing noise is caused by abnormalities in the crankshaft or connecting rod bearings, or a lack of lubrication. Below are detailed explanations of the causes: Abnormalities in Crankshaft or Connecting Rod Bearings: The cause of engine bearing noise is abnormalities in the crankshaft or connecting rod bearings. In such cases, it is best to immediately stop the engine, call for assistance, and proceed to a 4S shop for inspection and repair. Lack of Lubrication: Engine bearing seizure occurs when the crankshaft or connecting rod bearings experience sintering due to insufficient lubrication or excessive heat wear. This can lead to the crankshaft seizing and forcibly stalling the engine. In severe cases, it may even damage the crankshaft bearing seat, resulting in the complete scrapping of the engine assembly.
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