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Cummins Ism blowing smoke!? With video

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Chevyho, Nov 13, 2018.

Page 2 of 2
  1. Nov 13, 2018 #11
    stillwurkin

    stillwurkin Road Train Member

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    Dec 2, 2017
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    Hope it at least heals when it dries. Had a weird electrial issue one time. Not same as yours but i ended up spraying water on each wire area separately until i finally found it. Mine always showed up in wet weather..pain in the neck.
     
    stillwurkin, Nov 13, 2018
    stillwurkin, Nov 13, 2018
    #11
    Cam Roberts and Chevyho Thank this.
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  3. Nov 13, 2018 #12
    Cam Roberts

    Cam Roberts Road Train Member

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    I would agree. I own my truck but sometimes I get a little crazy with my power washer. I hate a dirty cat motor. I try to stay away from electric connections as best I can
     
    Cam Roberts, Nov 13, 2018
    Cam Roberts, Nov 13, 2018
    #12
    stillwurkin Thanks this.
  4. Nov 13, 2018 #13
    Chevyho

    Chevyho Medium Load Member

    350
    55
    Dec 13, 2013
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    I have an ecm image from insite from a few weeks ago when everything was working properly, and one from today when its running terrible. Im comparing a few values between the two, same engine temp and rpm in both. Turbo speed was 22000 rpm when running good, now only 10400 rpm. Egr differential pressure was 0.0 InHg when running good, now it is showing 1.1 InHg. Is it possible the egr valve is stuck open.
     
    Chevyho, Nov 13, 2018
    Chevyho, Nov 13, 2018
    #13
  5. Nov 14, 2018 #14
    Chevyho

    Chevyho Medium Load Member

    350
    55
    Dec 13, 2013
    0
    Ran like crap still this morning, I was able to open up the back plate of the egr and sure enough it was stuck open. Runs perfect again now. Thanks for the help
     
    Chevyho, Nov 14, 2018
    Chevyho, Nov 14, 2018
    #14
    SAR, Heavyd and stillwurkin Thank this.
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