Allright, help me out. I think my belt is slipping. I removed my smog pump and put on a 91 inch belt. It was a PITA to get on there so I thought it was short enough. I drove it that day and it seemed fine but it sat in the garage the past month and now it squels hella loud sometimes. The tensioner is tensioned to it's max but the belt seems tight. When I start it up it squeels, at idle it's fine. If I blip the trottle it squeels for a sec then shuts up and if I rev it up right after that it will still be quiet. Sometimes when i'm driving it's quiet then somtimes it squeels. I believe the sound is coming from the alternator pully. Is my belt too loose? Or maybe is my alt. going bad? Also, the gauge reads about 12 volts while idleing, but if I put the AC on max, blasted the stereo, turned on all the lights and kept moving the windows up and down and watched the needle on the volt gauge dip down to like 6 but maybe thats normal?? Let me know what you think or what I can do to test it. I only drove the car for about 5 minutes because that sound scares me. Thanks