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Jake brake making truck rattle/kinda death shake

Discussion in 'Questions From New Drivers' started by RogerThat72, Jul 31, 2016.

  1. Jul 31, 2016 #1
    RogerThat72

    RogerThat72 Road Train Member

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    so lately but more persistently when I'm coming down a hill and engage my jake brake the truck starts to rattle or shake. I can't figure it out nothing is broke or loose. Any ideas before I bring it to mack :(

    2013 Mack Pinnacle automatic Mshift
     
    Last edited: Jul 31, 2016
    RogerThat72, Jul 31, 2016
    RogerThat72, Jul 31, 2016
    #1
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  3. Jul 31, 2016 #2
    dumptruck89

    dumptruck89 Light Load Member

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    Check the u-joints on the drive shaft, and the yokes. If there loose they can make the truck shake pretty good.
     
    dumptruck89, Jul 31, 2016
    dumptruck89, Jul 31, 2016
    #2
    RogerThat72 Thanks this.
  4. Jul 31, 2016 #3
    RogerThat72

    RogerThat72 Road Train Member

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    Thanks. I'll check that out.
     
    RogerThat72, Jul 31, 2016
    RogerThat72, Jul 31, 2016
    #3
  5. Jul 31, 2016 #4
    062

    062 Road Train Member

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    If it's only with jake on,bad solenoid,wiring issue or valve train.
    If it does it with jakes off,and only on down hill,I'd guess leveling valve.
     
    062, Jul 31, 2016
    062, Jul 31, 2016
    #4
  7. Jul 31, 2016 #5
    RogerThat72

    RogerThat72 Road Train Member

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    Only when the jake is on. And at first nothing but when the name really wants to work it then starts doing it
     
    RogerThat72, Jul 31, 2016
    RogerThat72, Jul 31, 2016
    #5
  8. Jul 31, 2016 #6
    062

    062 Road Train Member

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    When was last time overhead was adjusted?
    You can cycle thru the stages to rule out wiring
     
    062, Jul 31, 2016
    062, Jul 31, 2016
    #6
  9. Jul 31, 2016 #7
    RogerThat72

    RogerThat72 Road Train Member

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    I'm going to guess and say never only has 251,000 on it
     
    RogerThat72, Jul 31, 2016
    RogerThat72, Jul 31, 2016
    #7
  10. Jul 31, 2016 #8
    062

    062 Road Train Member

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    Not sure what Mack recommends, but that's twice what I like to run one.
     
    062, Jul 31, 2016
    062, Jul 31, 2016
    #8
  11. May 18, 2020 #9
    Lone Wolf 0811

    Lone Wolf 0811 Bobtail Member

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    What was the outcome with your Jake?
     
    Lone Wolf 0811, May 18, 2020
    Lone Wolf 0811, May 18, 2020
    #9
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