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Heavy vibration when I turn on engine brake

Discussion in 'Ask An Owner Operator' started by Moephilly1, Jan 12, 2019.

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  1. Jan 12, 2019 #1
    Moephilly1

    Moephilly1 Light Load Member

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    Oct 6, 2016
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    hey guys I have a 2007 w900 with cat 15, when I turn on engine brake The whole truck and engine starts to vibrate heavy and the check engine light comes on sometime but goes fast I can’t figure out the flash code. Any thoughts? Thanks
     
    Moephilly1, Jan 12, 2019
    Moephilly1, Jan 12, 2019
    #1
    Dale thompson Thanks this.
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  3. Jan 12, 2019 #2
    Snakeschasingcars

    Snakeschasingcars Heavy Load Member

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    Dont turn it on?
     
    Snakeschasingcars, Jan 12, 2019
    Snakeschasingcars, Jan 12, 2019
    #2
  4. Jan 12, 2019 #3
    D.Tibbitt

    D.Tibbitt Road Train Member

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    153,406
    Apr 26, 2013
    Gettin' down westbound
    0
    Thats ur truck sayin "quit slowin me down driver!!!"
     
    D.Tibbitt, Jan 12, 2019
    D.Tibbitt, Jan 12, 2019
    #3
  5. Jan 12, 2019 #4
    Zeviander

    Zeviander Road Train Member

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    Jan 23, 2015
    Winnipeg, MB, CA
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    VV-heads? Chances are they are busted, crack the valve covers and check.
     
    Zeviander, Jan 12, 2019
    Zeviander, Jan 12, 2019
    #4
    Moephilly1 Thanks this.
  7. Jan 12, 2019 #5
    supersnackbar

    supersnackbar Road Train Member

    19,832
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    Aug 19, 2007
    Your Town, USA
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    I'm not familiar with CAT's, but if it has selector switch for low/med/high, see if it does it on each position. It'll help identify which cylinder(s) are the problem.
     
    supersnackbar, Jan 12, 2019
    supersnackbar, Jan 12, 2019
    #5
    Tombstone69, 22dragoo and Moephilly1 Thank this.
  8. Jan 12, 2019 #6
    Largecar359

    Largecar359 Road Train Member

    1,075
    1,324
    Aug 13, 2011
    New Jersey
    0
    STAY OFF THE JAKE. Until you can take a peak into the rocker boxes. When is the last time you ran the Rack on your motor? If it has been awhile then you got one or two out of adjustment. If Trk is shuttering bad then do valve adjustment and re-bush jakes. Check number 3-4 cylinder first, they usually go before others. You’ll be fine as long as you don’t keep riding around singing the jake. Also check springs, a busted jake spring will cause vibration. Problem will reveal itself as soon as you look in the rocker boxes.
     
    Largecar359, Jan 12, 2019
    Largecar359, Jan 12, 2019
    #6
    Moephilly1 Thanks this.
  9. Jan 13, 2019 #7
    Moephilly1

    Moephilly1 Light Load Member

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    I turn it on once a week, I’m not the type of driver who has it on 24/7
     
    Moephilly1, Jan 13, 2019
    Moephilly1, Jan 13, 2019
    #7
    D.Tibbitt Thanks this.
  10. Jan 13, 2019 #8
    Moephilly1

    Moephilly1 Light Load Member

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    Oct 6, 2016
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    I dont usually use it it’s once in a blue when I really need it. I recently bought the truck so I’m not sure about that. I’ll take it to a shop Monday to check that out that’s for your help
     
    Moephilly1, Jan 13, 2019
    Moephilly1, Jan 13, 2019
    #8
  11. Jan 13, 2019 #9
    Moephilly1

    Moephilly1 Light Load Member

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    Oct 6, 2016
    0
    Will do thanks for the help
     
    Moephilly1, Jan 13, 2019
    Moephilly1, Jan 13, 2019
    #9
  12. Jan 13, 2019 #10
    Moephilly1

    Moephilly1 Light Load Member

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    Oct 6, 2016
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    It does it on all positions
     
    Moephilly1, Jan 13, 2019
    Moephilly1, Jan 13, 2019
    #10
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