What Could Be the Problem When the Car Makes Noise as Soon as the Air Conditioner Is Turned On?

[PenelopeFitz]

Possible reasons for loud noise when the car's air conditioner is turned on include: dirty or stuck throttle valve; abnormal noise from the air conditioning pump. The specific reasons are introduced as follows: Dirty or stuck throttle valve: When the air conditioner is turned on, the compressor also starts working, and the compressor is driven by the engine. Therefore, turning on the air conditioner increases the load on the engine, which means the engine needs to increase the throttle opening to allow more air intake. When the throttle valve has carbon deposits or is stuck, it can cause engine shaking and abnormal noise. Abnormal noise from the air conditioning pump: There are two main reasons for abnormal noise from the air conditioning pump: the electromagnetic clutch and the bearings inside the air conditioning pump. The abnormal noise from the electromagnetic clutch is mainly caused by wear and tear, leading to increased clearance. The abnormal noise from the air conditioning pump bearings is mainly due to a lack of lubricating oil. If these issues are not resolved in time, the air conditioning pump may burn out, resulting in the inability to perform cooling work.