So when i am using my AC or defrost I can really hear what I think is my AC clutch engaging. So much that it jerks the car a tad. It also sounds like a squeeling belt but not too terribly loud. The AC and defrost work perfect but I am just wondering if these sounds are signs of future problems? I took it to my mechanic and he said that the ac clutch sound was normal with subarus. Any pointers would be great!