VOLVO D13 Soot Level not going down after parked regen

Discussion in 'Volvo Forum' started by Pawel-pl, Sep 16, 2021.

  1. Pawel-pl

    Pawel-pl Light Load Member

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    Jul 3, 2017
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    Hello,


    My truck is not lowering the soot level after the regen, it completes the regen as usual with the temps good but the soot level stays the same and it asks for more parked regeneration. In the past year, I got DPF, NOX sensors, temp sensors, and differential pressure sensors changed. I checked for leaks in the exhaust and nothing in there.

    Any advice on what could be the issue?


    Edit:
    I had the computer plugged in to check the temps and if any of the sensors is reading anything unusual but it showed nothing wrong, no codes also
     
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  3. Cattleman84

    Cattleman84 Road Train Member

    6,970
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    Nov 1, 2017
    The Sticks, Idaho
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    What operating conditions does this truck see? Long periods (3+ hours) of driving at highway speeds? Short hauls with lots of stop and go such as local P&D with lots of idling? Or maybe somewhere in between?
     
  4. Ross_Tech

    Ross_Tech Light Load Member

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    Aug 31, 2021
    Michigan
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    What are your T1, T2, and T3 temps and DPF delta P during regen?
     
  5. Pawel-pl

    Pawel-pl Light Load Member

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    Jul 3, 2017
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    Long Highway most of the time
     
  6. Pawel-pl

    Pawel-pl Light Load Member

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    Jul 3, 2017
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    I remember the DPF inlet was around 950, outlet 900. Don't remember the others
     
  7. Ross_Tech

    Ross_Tech Light Load Member

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    Aug 31, 2021
    Michigan
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    The dpf differential sensor tubes could be plugged, or there can be a fault in the wiring where the ECM is reading an incorrect value. Its possible too(likely), that an upstream issue has plugged the DPF with excessive soot and ash. Higher inlet than outlet temps can sometimes be an indicator of this. EGR cooler problems as well as injector cup problems are common on the D13's. What EPA/GHG/OBD year is the engine?
     
  8. Pawel-pl

    Pawel-pl Light Load Member

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    Jul 3, 2017
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    Not sure what EPA/GHG/OBD is. It is 2015 d13
     
  9. John_IronClad

    John_IronClad Bobtail Member

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    Jun 30, 2021
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    My 2020 Volvo won't even allowed me to do a Regen, I guess the company has it set like that but I don't know why they would do that. I feel the truck does it itself when am idle.
     
  10. John_IronClad

    John_IronClad Bobtail Member

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    Jun 30, 2021
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    Also I have a vibration on my drive tireswhen I turn my engine brakes to max, any idea why ?
    My tires are fairly new. 2020 Volvo 219000 miles.
     
  11. Ross_Tech

    Ross_Tech Light Load Member

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    Aug 31, 2021
    Michigan
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    The new strategy for Volvo is 100% driving/automatic regens.
     
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