Noises problem
1996 Jeep Grand Cherokee V8 All Wheel Drive Automatic

Hi, i have a 1996 jeep grand cherokee limited 5.2 liter (318 Motor) and my power steering pulley blew apart, after i replaced that and the serpentine belt, i have a really bad squeal coming from the pulleys, the tensioner is okay, except its getting worn out and is a little out of line from the rest of my pulley's. so i have really no idea why it is making such loud squeals, and sometimes it makes a knock, such as the belt hitting something, but the belt is fine. Any ideas??