Why does the engine position make abnormal noise when the car's air conditioner is turned on?

1 Answers
HaydenRose
07/30/25 9:22am
When the car's air conditioner is turned on, the abnormal noise from the engine position may be caused by excessive engagement of the compressor electromagnetic clutch producing metal friction sounds or excessive tension on the air conditioning belt. Compressor Electromagnetic Clutch: The metal friction sound produced when the engagement amplitude of the compressor electromagnetic clutch is too large. Repair the clutch to reduce the engagement amplitude to resolve the issue. Excessive Tension on Air Conditioning Belt: The squeaking sound caused by excessive tension on the air conditioning belt. Both situations occur only when the air conditioner is turned on and the accelerator is pressed. Since these are normal operational phenomena, they are not serious. Repair the air conditioning belt to increase its load-bearing capacity to resolve the problem.
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