If your car's air conditioning compressor is making a whining noise during acceleration, it could indicate a potential issue with the compressor or its components. However, since your air conditioning still blows cold air, the problem might not be severe at the moment.
There are a few possible reasons for the whining noise:
Belt Tension: The AC compressor is connected to the engine via a belt. If the belt is loose or worn, it can cause a whining noise when the engine's RPM increases during acceleration.
Compressor Clutch: The AC compressor has a clutch that engages and disengages the compressor when the AC is turned on or off. If the clutch is worn or misaligned, it might produce a whining noise during operation.
Internal Wear: The compressor's internal components may be experiencing wear, leading to the noise during acceleration.
Since the AC is still blowing cold air, it indicates that the compressor is currently functioning and circulating refrigerant. However, it's essential to address the whining noise promptly to avoid any potential further damage that could lead to a complete failure of the compressor.
It is recommended to take your car to a qualified mechanic or an AC specialist to inspect and diagnose the issue with the compressor and address the whining noise. They can examine the compressor, the belt, and the clutch to determine the root cause of the noise and perform any necessary repairs or adjustments. Early detection and resolution of the problem can help prevent more significant and costly issues in the future.