Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hello my name is***** am an ASE Master Technician and I am glad to help you out with your question.
I wonder if the compressor is binding putting a large load on the engine.
Maybe this is a voltage problem with the alternator. When ac is on its putting a load on the battery. I would check charging system voltage at idle with the ac on.
Low voltage would cause the engine to run rough.
Hello again Dan here,
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Some things are difficult to diagnose over the computer without being there to look at things.
Glad you were able to figure this out!