Hello, this is my first time on the forums and I have a hopefully quick question to ask. I own a 2002 Outback Impreza the wagon with the bug eye lights not the sport version. I love it. But the a/c isn't working and I want to start fixing my car problems myself. So in other words I don't really know that much about cars but I have some mechanical experience with dirt bikes and I'm willing to learn. Thought I would ask you guys so I can pin down the problem and see what I need to do to fix it. So the heat works fine the a/c didn't work until I took it to shop and now it "kinda" works. When I turn the a/c on cool air will come out in waves but its not normal and it makes a loud screeching sound that comes from the front of the car. Could this be the a/c clutch belt slipping? What else can I do to troubleshoot my problem. Thanks for reading.