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N14 select plus skip,smoke,rough idle

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Rc1234, Sep 28, 2019.

  1. Sep 28, 2019 #1
    Rc1234

    Rc1234 Bobtail Member

    18
    4
    May 31, 2018
    0
    started suddenly after hitting rough road..#3 injector failed cutout test,dealer replaced..no change..still rough shake at idle,lots of black smoke under load,strong fuel smell,ticking noise...
     
    Rc1234, Sep 28, 2019
    Rc1234, Sep 28, 2019
    #1
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  3. Sep 28, 2019 #2
    Bakerman

    Bakerman Road Train Member

    4,663
    8,806
    Jan 27, 2013
    Phoenix, AZ
    0
    Return fuel line blocked?
     
    Bakerman, Sep 28, 2019
    Bakerman, Sep 28, 2019
    #2
  4. Sep 28, 2019 #3
    Heavyd

    Heavyd Road Train Member

    7,625
    6,027
    Feb 4, 2009
    0
    Check basics, check your electrical connections, but it also sounds like the fuel is aerated. Fuel line on the suction side might have cracked enough during the bouncing to allow it to be sucking air now.
     
    Heavyd, Sep 28, 2019
    Heavyd, Sep 28, 2019
    #3
    Bakerman Thanks this.
  5. Sep 28, 2019 #4
    mrbamcclain

    mrbamcclain Light Load Member

    258
    116
    May 25, 2011
    Hammond, La
    0
    Swap #4 to #3 see if the problem remains. Replace the pass thru connector.
    Last time overhead was run?
     
    mrbamcclain, Sep 28, 2019
    mrbamcclain, Sep 28, 2019
    #4
    Bakerman Thanks this.
  7. Sep 28, 2019 #5
    Rc1234

    Rc1234 Bobtail Member

    18
    4
    May 31, 2018
    0
    All the above ok...suspect broken valve....
     
    Rc1234, Sep 28, 2019
    Rc1234, Sep 28, 2019
    #5
  8. Sep 30, 2019 #6
    Rc1234

    Rc1234 Bobtail Member

    18
    4
    May 31, 2018
    0
    Found broken exhaust valve...hope piston is ok...the dealer I am stuck at is unbelievably slow...more later...
     
    Rc1234, Sep 30, 2019
    Rc1234, Sep 30, 2019
    #6
    Bakerman Thanks this.
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