Anyone have a problem with the tensioner losing some of it tension?? My 97 Blazer seems to be letting the belt slip and you can hear it kinda squeaking. I remove the belt and the nose goes away. I tried a new belt, and degreasing all of the pulleys (also replaced the alt, but that was because of noisy bearings). When you look at the tensioner while it is running, it bounces around a lot which is what is leading me to believe it is too loose. Also all of the accessory pulleys spin freely and while running no other part of the belt seems to be flapping, or otherwise loose.