Noise coming from the belt, pulley area. Cannot seem to locate the exact location of the noise. Anything common for this particular noise. 1998 GMC Sierra 5.7

 

Might want to replace the belt.My '94 was making noise and I kept putting belt dressing on it for a few months,then it broke on me about a week ago.I would say if it is an old belt you prolly only have 5000 miles left on it..or it could just be loose.