squeeking under truck

Discussion in 'Chevy Silverado Forum (GMC Sierra)' started by PolishSilverado, Jun 4, 2012.

  1. PolishSilverado

    PolishSilverado New Member

    Hey
    I own a 2000 Silverado 2500 Ls 6.0L and recently i started hearing a squeeking noise sounds like from under the cab it squeeks when on idle and when driving sometimes the truck is loud so i dont hear it driving usually but i know its there. It squeals when i rev it in place and while driving im confused. some more info its a 5 speed, its not a HD but the heavy duty chassis was added, k&n intake, lockers.
     
  2. ChevyBoy2009

    ChevyBoy2009 Rockstar 4 Years 500 Posts

    Serpentine belt,AC Belt???
     
  3. PolishSilverado

    PolishSilverado New Member

    Its not the belts its a pinging squeek noise under the cab and its not obnoxious like the belts its quiet
     
  4. ChevyBoy2009

    ChevyBoy2009 Rockstar 4 Years 500 Posts

    lifter maybe?...run some sea-foam thru it and see if thats changes anything
     
  5. PolishSilverado

    PolishSilverado New Member

    ok so i found out what it was since i have no muffler it pipes out the side and the brackets that hold it to the truck are rusty and loose and they squeek when i give it gas!
     

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