My 2001 Silverado has a squealing in the fan belt 3 weeks after replacement which continues to worsen with time. It has been serviced and replaced by the dealer a number of times. The dealer tells me that everything is aligned. I had another mechanic clean the pulleys, etc
2 months ago and still the squealing came back to the point where it is almost unbearable. Something is causing the belt to deteriorate. Any suggestions would be greatly appreciated.