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2008 ISX 455HP is...running a few extra revolutions after key shut off????

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Jackbeenimble, Nov 11, 2012.

  1. Nov 11, 2012 #1
    Jackbeenimble

    Jackbeenimble Bobtail Member

    7
    2
    Sep 6, 2012
    0
    Just wondering..My ISX 455HP is a 2008 w/DPF (no Liquid). When I shut the key off..sometimes it will run a few extra revolutions under power.?? I did take it for a tune up last week to cummins in De Pere,WI. They ran a full ECM chk and did a tune up and found nothing unusual or out of whack. It's almost like it has a few extra drops of fuel in a cylinder or two. Any body have this ?:biggrin_25510:
     
    Jackbeenimble, Nov 11, 2012
    Jackbeenimble, Nov 11, 2012
    #1
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  3. Nov 12, 2012 #2
    fireba11

    fireba11 Heavy Load Member

    864
    540
    Jul 30, 2007
    Tracy City, TN
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    sounds to me like you have a injector leaking or injector nozzle problem.
     
    fireba11, Nov 12, 2012
    fireba11, Nov 12, 2012
    #2
  4. Nov 12, 2012 #3
    Pablo-UA

    Pablo-UA Road Train Member

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    Oct 11, 2010
    Borispol, Ukraine
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    may be fueling actuator
     
    Pablo-UA, Nov 12, 2012
    Pablo-UA, Nov 12, 2012
    #3
  5. Nov 12, 2012 #4
    Heavyd

    Heavyd Road Train Member

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    Fuel shutdown solenoid disc is sticking or the rubber in the center of the disc is worn or cut and allowing fuel to slip past.
     
    Heavyd, Nov 12, 2012
    Heavyd, Nov 12, 2012
    #4
  7. Nov 12, 2012 #5
    Jackbeenimble

    Jackbeenimble Bobtail Member

    7
    2
    Sep 6, 2012
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    Mucho Gracious HeavyD That's the best explanation since I just had it all checked out and the injectors are 100% ok...I'll be going to cummins to replace the solenoid..... Thank you a bunch !
     
    Jackbeenimble, Nov 12, 2012
    Jackbeenimble, Nov 12, 2012
    #5
  8. Nov 12, 2012 #6
    Heavyd

    Heavyd Road Train Member

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    Feb 4, 2009
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    The solenoid is just one part. The disc isn't included with a new solenoid. Chances are the disc is just dirty and needs a good cleaning. Just let them know what is happening and they will check it out.
     
    Heavyd, Nov 12, 2012
    Heavyd, Nov 12, 2012
    #6
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