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2012 780 CUMMINS ISX (REGEN PROBLEM)

Discussion in 'Trucks [ Eighteen Wheelers ]' started by InRoadsOne, Jun 22, 2018.

Page 1 of 2
  1. Jun 22, 2018 #1
    InRoadsOne

    InRoadsOne Bobtail Member

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    Truck passed dyno. However, Cummins reported that it threw an aftertreatment code during the dyno. They did a parked regen and that cleared the code. We drove the truck back from Cummins and reported that it was again asking for a parked regen.

    Any idea what the problem might be?

    Thanks!
     
    InRoadsOne, Jun 22, 2018
    InRoadsOne, Jun 22, 2018
    #1
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  3. Jun 22, 2018 #2
    I glide 47

    I glide 47 Road Train Member

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    It has a regeneration system needs to be removed but we can't talk about that
     
    I glide 47, Jun 22, 2018
    I glide 47, Jun 22, 2018
    #2
    Snailexpress Thanks this.
  4. Jun 22, 2018 #3
    Socal Xpress

    Socal Xpress Road Train Member

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    What code is the ecm throwung?
     
    Socal Xpress, Jun 22, 2018
    Socal Xpress, Jun 22, 2018
    #3
  5. Jun 22, 2018 #4
    Snailexpress

    Snailexpress Road Train Member

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    It's like you are walking outta hospital after expensive MRI and asking on FB why I have diarrhea.
    Shame on Cummins.
     
    Snailexpress, Jun 22, 2018
    Snailexpress, Jun 22, 2018
    #4
    Heavyd Thanks this.
  7. Jun 25, 2018 #5
    InRoadsOne

    InRoadsOne Bobtail Member

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    Active Fault Code 2639
     
    InRoadsOne, Jun 25, 2018
    InRoadsOne, Jun 25, 2018
    #5
  8. Jun 25, 2018 #6
    InRoadsOne

    InRoadsOne Bobtail Member

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    Actually, I just learned that there is no active code. That WAS the code it was throwing. The truck just keeps asking for a parked regen.
     
    InRoadsOne, Jun 25, 2018
    InRoadsOne, Jun 25, 2018
    #6
  9. Jun 25, 2018 #7
    Socal Xpress

    Socal Xpress Road Train Member

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    Socal Xpress, Jun 25, 2018
    Socal Xpress, Jun 25, 2018
    #7
  10. Jun 25, 2018 #8
    Dave_in_AZ

    Dave_in_AZ Road Train Member

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    Interesting. On the New Posts page, out of 20 articles, 3 are about people yanking their hair out with CAT motors.

    Now comparing apples to apples, being as there are a fraction of CAT motors in use compared to all the rest, doesn't that seem an unusually high percentage?
     
    Dave_in_AZ, Jun 25, 2018
    Dave_in_AZ, Jun 25, 2018
    #8
  11. Jun 25, 2018 #9
    Heavyd

    Heavyd Road Train Member

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    You need the after treatment system looked at to see why it is asking for frequent regens or not fully completing them. Likely need the system cleaned. One way or the other, you need someone who can run Insite on it and force a regen to see if it is making proper temps and reading properly.
     
    Heavyd, Jun 25, 2018
    Heavyd, Jun 25, 2018
    #9
    AModelCat, InRoadsOne, bzinger and 1 other person Thank this.
  12. Jun 25, 2018 #10
    InRoadsOne

    InRoadsOne Bobtail Member

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    Will give that a shot. Thanks for your input everybody!
     
    InRoadsOne, Jun 25, 2018
    InRoadsOne, Jun 25, 2018
    #10
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