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KW with Paccar MX regen help

Discussion in 'Kenworth Forum' started by ek3882, Nov 27, 2017.

  1. Nov 27, 2017 #1
    ek3882

    ek3882 Bobtail Member

    6
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    Nov 27, 2017
    0
    I'm working on a paccar mx that will not get hot enough to do a stationary regen. I know the exhaust temp before DOC must reach 482 degrees before the doser will start, but I get to 472 and that is all.
    Have replaced the doser and the teemp sensors.
    Any takers?
     
    ek3882, Nov 27, 2017
    ek3882, Nov 27, 2017
    #1
    Another Canadian driver Thanks this.
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  3. Nov 28, 2017 #2
    ek3882

    ek3882 Bobtail Member

    6
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    Nov 27, 2017
    0
    Ok problem solved. Apparently the 13s don't like to heat up on their own too well so turning the engine fan and a/c on will load the engine enough to get that temp up enough for a stationary regen.
    Maybe this will help someone else out before they dump a grand worth of parts first. Ha Ha.
     
    ek3882, Nov 28, 2017
    ek3882, Nov 28, 2017
    #2
    Another Canadian driver, A gear per tire and QUALITYTRUCK Thank this.
  4. Feb 23, 2022 #3
    A gear per tire

    A gear per tire Bobtail Member

    40
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    Jan 26, 2019
    0
    Having the same issue. It had high soot and temps rose. When soot level got to medium the temps decreased. Not 3 minutes later soot went low but regen required flashing still. Will post if this helps.
     
    A gear per tire, Feb 23, 2022
    A gear per tire, Feb 23, 2022
    #3
    Another Canadian driver Thanks this.
  5. Feb 23, 2022 #4
    A gear per tire

    A gear per tire Bobtail Member

    40
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    Jan 26, 2019
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    Ye
    Yes it worked. Thank you very much!
     
    A gear per tire, Feb 23, 2022
    A gear per tire, Feb 23, 2022
    #4
    Another Canadian driver Thanks this.
  6. May 24, 2022 #6
    WarRhino

    WarRhino Bobtail Member

    1
    1
    May 24, 2022
    0
    Got HighSoot alarm, then red alarm that DPF had to be serviced and engine was derated. DPF was removed and cleaned but found to be faulty. DPF, etc replaced. Still have red derate alarm. Truck will initiate a regen but not get to temp for it to kick in. Fan on, a/c on still not hot enough. Sensors show good. Any advice or tips appreciated
     
    WarRhino, May 24, 2022
    WarRhino, May 24, 2022
    #6
    Another Canadian driver Thanks this.
  7. May 25, 2022 #6
    spsauerland

    spsauerland Road Train Member

    4,296
    10,886
    May 31, 2010
    West Harrison, In
    0
    What year truck? What are you monitoring data with? Did you reset ash load?
     
    spsauerland, May 25, 2022
    spsauerland, May 25, 2022
    #6
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