I have a 2000 cadillac escalade. I am having a/c problems. I have changed the fan clutch. I have had the system checked and charged 2x. When I am driving it sound as though the door for the a/c & heat is opening & closing. I am wondering if there is a quick fix regarding possible vacum switch or electrical switch? I have a mechanical back groud but this one is driving me nuts because I live in AZ. Thank you for your time
MIke McCarthy
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2000 Cadillac escolade 8cyl