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After treatment system issue

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Commuter69, Feb 12, 2022.

  1. Feb 12, 2022 #1
    Commuter69

    Commuter69 Road Train Member

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    For nearly 4 years and 485000 miles, the 2019 Freightliner I was driving needed a parked regen a handful of times, and never on consecutive days.

    My company decided to sell it and put me in a 2020 Freightliner last week. I have needed a parked regen the last 2 consecutive mornings.

    What does this indicate? What should we do to prevent a catastrophic problem or derate to limited power?
     
    Commuter69, Feb 12, 2022
    Commuter69, Feb 12, 2022
    #1
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  3. Feb 12, 2022 #2
    Goodysnap

    Goodysnap Road Train Member

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    You either have a bias DPF pressure sensor or the filter is full and needs service. Get to a shop and get hooked up either way.
     
    Goodysnap, Feb 12, 2022
    Goodysnap, Feb 12, 2022
    #2
    krupa530, Bean Jr., spsauerland and 1 other person Thank this.
  4. Feb 13, 2022 #3
    msh

    msh Light Load Member

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    did you do idling night times ? if yes how many hours.
     
    msh, Feb 13, 2022
    msh, Feb 13, 2022
    #3
  5. Feb 13, 2022 #4
    Commuter69

    Commuter69 Road Train Member

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    Yes, on average, 8 is typical.
     
    Commuter69, Feb 13, 2022
    Commuter69, Feb 13, 2022
    #4
  7. Feb 13, 2022 #5
    Brandt

    Brandt Road Train Member

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    The 2020 freightliner with Detroit Diesel engine is setup to do a parked Regen every 6 hours of idle time. That's what my company truck 2020 freightliner does. It only takes about 20 minutes to do a parked Regen.
     
    Brandt, Feb 13, 2022
    Brandt, Feb 13, 2022
    #5
    msh and spsauerland Thank this.
  8. Feb 14, 2022 #6
    msh

    msh Light Load Member

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    Los Angeles, CA
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    Yes. GHG17 trucks are setup to do or request regen after 5-6 hours of idling. After idling ACM puts DPFs in Zone 3 and starts regen or may request to operator to start regen. If there will be increased DPF inlet pressure the code will pop up. High DPF inlet pressure code.
     
    Last edited: Feb 14, 2022
    msh, Feb 14, 2022
    msh, Feb 14, 2022
    #6
    Brandt Thanks this.
  9. Feb 14, 2022 #7
    msh

    msh Light Load Member

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    110
    Jul 18, 2021
    Los Angeles, CA
    0
    you are killing your engine by idling that much...
     
    msh, Feb 14, 2022
    msh, Feb 14, 2022
    #7
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