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Paccar Regen

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by kwayne88, Nov 11, 2020.

  1. Nov 11, 2020 #1
    kwayne88

    kwayne88 Light Load Member

    50
    15
    Jun 3, 2012
    Leesville, La.
    0
    2018 Pete 579, MX13, 295k miles.
    Soot Level High screen pops up while driving. No passive regen.
    If unable to stop quickly and park regen get a check engine light with wrench and a derate.
    Been to dealer repair shop twice, still no passive regen.
    Any clue what to tell service dept. so they will know how to get the passive regen working?
     
    kwayne88, Nov 11, 2020
    kwayne88, Nov 11, 2020
    #1
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  3. Nov 11, 2020 #2
    drive-away2020

    drive-away2020 Light Load Member

    68
    260
    Aug 17, 2020
    0
    Check and change your sensors.

    IMAP sensor (intake manifold air pressure)
    EGR differential pressure sensor
    Maybe DPF differential pressure sensor
    Maybe Exhaust back pressure sensor

    if these sensors don’t read right and are carbon packed, it will throw all sorts of stuff off
     
    drive-away2020, Nov 11, 2020
    drive-away2020, Nov 11, 2020
    #2
    Edjahman Thanks this.
  4. Nov 11, 2020 #3
    kwayne88

    kwayne88 Light Load Member

    50
    15
    Jun 3, 2012
    Leesville, La.
    0
    Thanks
     
    kwayne88, Nov 11, 2020
    kwayne88, Nov 11, 2020
    #3
    drive-away2020 Thanks this.
  5. Nov 11, 2020 #4
    Goodysnap

    Goodysnap Road Train Member

    3,718
    9,033
    Jul 12, 2017
    0
    You have an active fault code that is inhibiting passive regeneration. You need to get hooked up to troubleshoot the root cause fault.

    Get printouts, without them I cannot help.
     
    Goodysnap, Nov 11, 2020
    Goodysnap, Nov 11, 2020
    #4
    Diesel Dave, QUALITYTRUCK, spsauerland and 1 other person Thank this.
  7. Nov 11, 2020 #5
    spsauerland

    spsauerland Road Train Member

    4,296
    10,887
    May 31, 2010
    West Harrison, In
    0
    Has DPF been cleaned?
     
    spsauerland, Nov 11, 2020
    spsauerland, Nov 11, 2020
    #5
  8. Apr 10, 2021 #6
    Edjahman

    Edjahman Medium Load Member

    648
    444
    Apr 2, 2013
    0
    I have an MX13 EPA13 Paccar and I'm unable to locate a diagram for those sensors. I've done extensive Google searches and image searches.

    Do you know where I can get one?

    I want to pull mine and inspect them.

    Thank you.
     
    Edjahman, Apr 10, 2021
    Edjahman, Apr 10, 2021
    #6
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