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2014 Cascadia clunking sound

Discussion in 'Experienced Truckers' Advice' started by Skippy0709, Aug 14, 2015.

Page 1 of 4
  1. Aug 14, 2015 #1
    Skippy0709

    Skippy0709 Bobtail Member

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    So I have a 2014 Freightliner Cascadia and since day 1 there has been an annoying clunking sound in the front end. It's most apparent when fully loaded and when braking at slow speeds like in traffic or in town. No one can figure it out... Anyone else experienced this? What is it and who can fix it? Freightliner has been no help!!!!
     
    Skippy0709, Aug 14, 2015
    Skippy0709, Aug 14, 2015
    #1
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  3. Aug 14, 2015 #2
    crxdc

    crxdc Road Train Member

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    Does it happen all the time or just ever once in awhile. Do you have your fifth wheel all the way forward or back?
     
    crxdc, Aug 14, 2015
    crxdc, Aug 14, 2015
    #2
  4. Aug 14, 2015 #3
    skellr

    skellr Road Train Member

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    Yeah, sounds/feels a lot like a loose shock mount ,but its intermittent. Not sure what it is either.
     
    skellr, Aug 14, 2015
    skellr, Aug 14, 2015
    #3
  5. Aug 14, 2015 #4
    crxdc

    crxdc Road Train Member

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    The airbrakes have a stutter sometimes. Realese and the reapply usually fixes it
     
    crxdc, Aug 14, 2015
    crxdc, Aug 14, 2015
    #4
  7. Aug 14, 2015 #5
    Dinomite

    Dinomite Road Train Member

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    Maybe a couple of mice in that Detroit passed away.
     
    Dinomite, Aug 14, 2015
    Dinomite, Aug 14, 2015
    #5
  8. Aug 14, 2015 #6
    25(2)+2

    25(2)+2 Trucker Forum STAFF Staff Member

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    You are assuming it's not a Cummins, you know.

    To the OP, does it pull to one side when it makes the sound? Slack adjusters don't always work right, especially on the front brakes. Mine would make the clunking even sitting still and repeated application seems to have cured it.
     
    25(2)+2, Aug 14, 2015
    25(2)+2, Aug 14, 2015
    #6
  9. Aug 14, 2015 #7
    Skippy0709

    Skippy0709 Bobtail Member

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    Aug 14, 2015
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    Skippy0709, Aug 14, 2015
    Skippy0709, Aug 14, 2015
    #7
  10. Aug 14, 2015 #8
    Skippy0709

    Skippy0709 Bobtail Member

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    All the time but seems worse when loaded and in town delivering or in stop and go traffic. Fifth wheel is all the way back as I am an enclosed car hauler with the bubble on front. Has to be all the way back to not pinch.
     
    Skippy0709, Aug 14, 2015
    Skippy0709, Aug 14, 2015
    #8
  11. Aug 14, 2015 #9
    Skippy0709

    Skippy0709 Bobtail Member

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    Aug 14, 2015
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    Have tried releasing and reapplying. Doesn't make a difference it still clunks.
     
    Skippy0709, Aug 14, 2015
    Skippy0709, Aug 14, 2015
    #9
  12. Aug 14, 2015 #10
    crxdc

    crxdc Road Train Member

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    Sounds like you may have a problem with the shocks or the air pressure regulator for the brakes. I would take her in asap.
     
    crxdc, Aug 14, 2015
    crxdc, Aug 14, 2015
    #10
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