What Causes Engine Abnormal Noise and Insufficient Power?

1 Answers
McLily
07/30/25 4:02am
The cause of engine abnormal noise is engine overheating. Fan malfunction: Fan malfunction affects the normal operation of the fan. The electromagnetic clutch or fan motor control switch operates too late or closes too early; the fan never rotates; failure of the fan silicone oil coupler. Insufficient coolant: Excessive internal consumption, potential cylinder damage, extremely low coolant circulation, water pump wheel failure; thermostat damage; excessive scale in the radiator or water channels, delayed cleaning. Excessive temperature: When the engine temperature is too high, it can cause oil dilution, which fails to effectively lubricate the engine internals, leading to increased wear of engine bearings, crankshaft scoring, and piston sticking to the cylinder walls.
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