Parked Regen DD16 question

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Phoenix Heavy Haul, Jan 12, 2024.

  1. Phoenix Heavy Haul

    Phoenix Heavy Haul Medium Load Member

    469
    1,398
    Feb 8, 2022
    Raleigh NC
    0
    Wussup everyone, I’ve searched through past post, but couldn’t find an exact breakdown or answer to my question.

    So I’ve never had my truck ask for a parked Regen until this week. It asked for one on Monday and now the light came on again today while driving (Friday).

    Truck is a 2018, with 540k on it , I have a APU and avoid idling as much as possible. Filters were baked a 100k ago, however, I had an EGR cooler (replaced EGR valve as well) take a dump about 30k ago and dump a lot of coolant through the exhaust. Engine was replaced around 60k ago, along with new turbo.

    Would this indicated that it’s time to bake or replace my DPF filters? Or anywhere else I should look first to eliminate possible sensor issues.

    Also any experience with bakes vs new DPF filters?

    I figured it was getting time to bake or replace them.
     
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  3. biopure22

    biopure22 Light Load Member

    87
    51
    Aug 22, 2021
    0
    Never bake or just clean filters you should always get Detroit remanufactured filters replaced, with that cooler leaking into the exhaust it could mean you need a whole new one box, but have you had a scanner hook up to it? Any code you can give me I could look them up
     
  4. Phoenix Heavy Haul

    Phoenix Heavy Haul Medium Load Member

    469
    1,398
    Feb 8, 2022
    Raleigh NC
    0
    SPN 520349 this one has been on for a while, my mechanic put the laptop on it and said exhaust pressure was reading correctly and didn’t indicate any high levels of soot, he also pulled soot sensor and we’re no signs of soot. So I assumed it was bad sensor, haven’t replaced it yet.

    SPN-5298 this one comes every now and then, it is currently not showing active. However, this code will normally pop up after an unsuccessful passive regen where it will blow white smoke out of the exhaust.
     
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