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1996 Suburban Squealing Serpentine Belt

Discussion in 'General Chevy & GM Tech Questions' started by marksz, Jul 12, 2010.

  1. marksz

    marksz New Member

    Hi, I have a persistent problem with the serpentine belt on my 5.7 equipped Suburban starting to make an annoying squealing noise especially when cold. Now the problem is that I change this belt out everytime it starts to do this and it only takes a couple of thousand miles before the annoying noise returns. I have purchased the "better, thicker" belts from NAPA at the suggestion of my local mechanic, but same result.

    Anyone have this problem and come up with any good, lasting solution?
  2. silveradotrailblazer

    silveradotrailblazer Epic Member 5+ Years ROTM Winner 5000 Posts

    Go to, they have some good videos about belt squeal. I had the problem after replacing the power steering pump and I found out on the site that I hadnt installed the psp pulley all they way so it was misaligned. I just pressed the pulley on a little more and that was it. I did the same as you did with trying new belts and the wouldn't squeal at first.
  3. wis bang

    wis bang Rockstar 100 Posts

    My old '88 S-10 used to do that! Complaining to my parts jobber, he mentioned that the book had (2) numbers listed for that [non- A/C] truck. and the 2nd one was smaller. I tried it and it fit and the squeal never returned...

    The parts guys always gave me the first number listed in the book. and it would be squealing in a couple months.

    Of course that was a 'real' old time parts jobber VRS some high school kid at Advanced Auto Crap....

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