GMC 1500 Pickup Problem Report

GMC 1500 Pickup Abnormal Noise From AC Compressor

(12 reports)

The air conditioning compressor may develop an abnormal noise and require replacement. We recommend that whenever an AC compressor is being replaced for a noise condition, a filter kit should be installed to prevent any metal particles in the system from damaging the new compressor.

Recently overhauled this 4.3L due to quick connect fitting breaking off an causing overheating. Engine now runs great however, there is a bad vibration with the a/c on between idle speed and 1300 rpms.Only makes this vibration with a/c on and stops above 1300 rpm,s. A/C compressor replaced with new 6 months ago. -
Growling compressor accompanied with a high pitch whine, that pierces one's ears. -
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