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weird grinding sound

Discussion in 'Ask An Owner Operator' started by mejiera, Jul 7, 2021.

  1. Jul 7, 2021 #1
    mejiera

    mejiera Bobtail Member

    16
    6
    Nov 6, 2020
    0
    I have a 2017 freightliner cascadia dd15 engine and dd12 transmission the truck has started making like a grinding sound but only when I pull a heavy load if im empty the noise goes away but the heavier the load the more intense the sound you can hear it most at low speeds 1-10 miles per hour any idea what it could be ?
     
    mejiera, Jul 7, 2021
    mejiera, Jul 7, 2021
    #1
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  3. Jul 8, 2021 #2
    pavrom

    pavrom Road Train Member

    3,185
    7,305
    Apr 29, 2012
    NE illinois
    0
    Empty air bags ...
     
    pavrom, Jul 8, 2021
    pavrom, Jul 8, 2021
    #2
  4. Jul 8, 2021 #3
    woolybully35us

    woolybully35us Medium Load Member

    313
    550
    Mar 13, 2015
    ks
    0
    air bags putting the u joints in a bind
     
    woolybully35us, Jul 8, 2021
    woolybully35us, Jul 8, 2021
    #3
    Trucker61016 Thanks this.
  5. Jul 8, 2021 #4
    ProfessionalNoticer

    ProfessionalNoticer Road Train Member

    2,941
    7,858
    Apr 25, 2021
    0
    Check all your wheel bearings closely.
     
    ProfessionalNoticer, Jul 8, 2021
    ProfessionalNoticer, Jul 8, 2021
    #4
  7. Jul 8, 2021 #5
    baha

    baha Road Train Member

    4,137
    2,836
    Jul 25, 2013
    ga
    0
    Replace the air ride valve then adj. it to correct ride hi. and it should stop making noise?
     
    baha, Jul 8, 2021
    baha, Jul 8, 2021
    #5
  8. Jul 9, 2021 #6
    Trucker61016

    Trucker61016 Road Train Member

    1,126
    3,497
    Sep 18, 2017
    Linville, Va
    0
    Are you saying its from the transmission when first starting out from being stopped, or does it sound like back at the drive axles ?
     
    Trucker61016, Jul 9, 2021
    Trucker61016, Jul 9, 2021
    #6
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