Question about 2002 Chevrolet TrailBlazer

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Surging Found the broblem was the a/c unit going bad because the a/c circulates on the defrost cycle. I disconnected the pin plug on the side but as long as the defrosters are on it still does it if anyone knows if there is another electrical connection on the a/c unit please let me know or do i have to remove the clutch. Im in penna and need the defroster. Thanks geo

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Yes, there is a connector on the clutch itself. The clutch is electromagnetic, so it needs to be energized to engage the compressor. Disconnect that plug (generally just 2 wires) and your A/C is disabled. You should not have to remove the clutch to do so. You could also disconnect the low pressure switch. That is generally located on the dryer (large canister like object). The will disable the A/C too.

Posted on Feb 04, 2009

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