My 2000 GT with 138,200 miles...is starting to make a louder sound when driving at any speed, and ideling. I remember when my Alternator on my 02 chevy 6.6l was making a metal grinding noice hear and there, then it eventually stopped all together and snapped my belt. Coult this be the same problem im starting to experience with my Grand Prix? It has gotten notticably worse the past few days. Sorry, i dont have any videos available to listen to.