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

1 Answers

DiPreston

07/29/25 3:26pm

Volkswagen Jetta turning on the air conditioning abnormal noise reasons are as follows: 1. Compressor: Abnormal noise from the air conditioning is usually caused by the compressor, including sounds from the compressor bearing, internal plungers, etc. 2. Abnormal Noise: Turning on the compressor can cause abnormal noise, which may also be produced by belt slippage, insufficient tension from the tensioner pulley, etc. 3. Pressure: If the pressure switch malfunctions, the compressor may intermittently turn on and off, leading to abnormal noise. 4. System: Excessive refrigerant in the system can generate noise during operation. 5. Clearance: Electromagnetic clutch slippage can occur due to improper clearance, excessive wear, oil contamination on the mating surfaces, low battery voltage, etc. Damage to the electromagnetic clutch bearing or improper installation of the coil can also cause issues.

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How much shorter is a car's wheelbase of 2600 compared to 2700?

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