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What Causes the Abnormal Noise When Turning on the Air Conditioning in a Mazda6?

1 Answers

KayleeLynn

07/29/25 7:54pm

Based on the different sounds of the abnormal noise, it can be divided into two situations: one is the metal friction sound emitted when the compressor electromagnetic clutch engages, and the other is the abnormal noise caused by excessive force on the air conditioning belt. The following are specific explanations: 1. Analysis one: The metal friction sound emitted when the compressor electromagnetic clutch engages is usually due to a lack of lubricating refrigerant oil inside the compressor. When there is insufficient refrigerant oil, the internal piston of the compressor does not receive adequate lubrication, resulting in metal friction sounds under the high pressure of the refrigerant. 2. Analysis two: The abnormal noise from the air conditioning belt when turning on the air conditioning is caused by the rapid increase in the air conditioning system pressure when the air conditioning is turned on.

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