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Freightliner brake hum when applied

Discussion in 'Freightliner Forum' started by Jeffrobodine122, Jul 24, 2015.

  1. Jul 24, 2015 #1
    Jeffrobodine122

    Jeffrobodine122 Bobtail Member

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    Jul 24, 2015
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    Hi I drive a 2003 freightliner and when I apply the brakes there's a hum coming from rear drive brakes am I pushing to hard or are new shoes needed does anyone know?
     
    Jeffrobodine122, Jul 24, 2015
    Jeffrobodine122, Jul 24, 2015
    #1
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  3. Jul 25, 2015 #2
    AModelCat

    AModelCat Road Train Member

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    Brake noise can be caused by a number of things. I'm guessing you have drum brakes? Is it a hum or more of a squeal? A hum/chatter I'd be checking lining/drum condition and for a possible wheel seal leak. A high pitch squeal could be a rock/dirt caught in the linings. You can usually see how much lining is left on the drums by looking through the inspection holes in the dust shields.
     
    AModelCat, Jul 25, 2015
    AModelCat, Jul 25, 2015
    #2
  4. Jul 25, 2015 #3
    Jeffrobodine122

    Jeffrobodine122 Bobtail Member

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    Jul 24, 2015
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    It's like a hum like you know sometimes when big rigs come to a stop and it's that hum like brakes were pushed to hard but mine does it just about every time
     
    Jeffrobodine122, Jul 25, 2015
    Jeffrobodine122, Jul 25, 2015
    #3
  5. Jul 29, 2015 #4
    Oldman49

    Oldman49 Medium Load Member

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    I think you need to have a real tech do a full inspection on shoes,drums, springs, brake chambers etc....kinda difficult to do online here.
     
    Oldman49, Jul 29, 2015
    Oldman49, Jul 29, 2015
    #4
  7. Jul 29, 2015 #5
    KB3MMX

    KB3MMX Road Train Member

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    Agreed
     
    KB3MMX, Jul 29, 2015
    KB3MMX, Jul 29, 2015
    #5
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