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squeal at ahigh rpm

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by badazzchick, Mar 6, 2001.

  1. badazzchick

    badazzchick Newbie

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    truck squeals(belt whine?) at about 3500, what is t his from? should i loosen the belt(S?)
     
  2. muddin4fun

    muddin4fun 3/4 ton status

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    does it sound like a bearing? You can check the belts for looseness. they are only supposed to flex about 1/4 of an inch at most. Pull off all the belts and check all the pulleys. spin all of them slowly and see if they are free and then try it spinning it fast and see if you notice a noise. a common thing is your water pump pulley and your alternator pulley

    [​IMG] Keep your feet dry [​IMG]
    <A target="_blank" HREF=http://muddin4fun.coloradok5.com>http://muddin4fun.coloradok5.com</A>
     
  3. freeforever

    freeforever 1/2 ton status

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    Mine did the same thing....just look at the belts and lossen or tighten them and see what happens.
     
  4. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    Belts. Real booger to tighten the power steering belt. Lady Reapers truck did the same . Just not a good way to get leverage. If your A/C belt is off that makes the problem worse. Even if your A/C isn't working but it has a good clutch try to run the belt. It will help keep it from squeeling.

    Diging it in the dirt with my K5's
    Grim-Reaper
    <A target="_blank" HREF=http://grimsk5s.coloradok5.com/>http://grimsk5s.coloradok5.com/</A>
     
  5. CV202

    CV202 1/2 ton status

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    If it's a sepertine set-up, check the tensioner and idler pulleys, things get REALLY interesting when the bearings on these let loose or seize on the freeway! (Cheap and easy to replace though)

    Why do people keep calling it a Bronco!!!!!
     

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