Okay, so I took the belt off of my alternator that routes the power steering, compressor, and crank pulley. Well when I put it back on, it squeaks really bad now. I did not change the belt, I just took it off and put it back on, and suddenly ended up with squealing. Well this evening I tried to turn my KC lights on while running my headlights and windshield wipers. Well everything dimmed down and the whole vehicle lost a lot of power. So I'm debating on whether the alternator is actually bad, or if I just need to change or tighten/loosen the belt slightly. Can anyone give me any advice on this? Thanks in advance.