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FUEL IN OIL 2010 CUMMINS ISC 8.3

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Kawi027, Feb 22, 2018.

Page 16 of 17
  1. Jun 4, 2018 #151
    Kawi027

    Kawi027 Light Load Member

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    Apr 22, 2013
    LAS VEGAS, NV
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    Even with a bright light its going to be very hard to get any view of inside the catalyst with those hole sizes.
    Also today the 3582 and 3543 code came back, usually they stay off for about 10 days or so.
    Should I try replacing the inlet nox sensor since I just replaced the outlet?
    Thank you
     
    Kawi027, Jun 4, 2018
    Kawi027, Jun 4, 2018
    #151
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  3. Jun 5, 2018 #152
    Goodysnap

    Goodysnap Road Train Member

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    You can replace the inlet nox if you want. I'm skeptical it will fix. My advice would be to follow published troubleshooting steps for 3543. After checking DEF quality and flow checking the doser. Usually finger points to failed catalyst.
     
    Goodysnap, Jun 5, 2018
    Goodysnap, Jun 5, 2018
    #152
    Kawi027 Thanks this.
  4. Jun 13, 2018 #153
    Kawi027

    Kawi027 Light Load Member

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    Apr 22, 2013
    LAS VEGAS, NV
    0
    Update* After checking the def doser (everything was fine),
    I went ahead and took the bullet and ordered a new SCR filter $3200.00 bucks! I am going to install in the next day or two. My code (3582 and 3543) keep coming back at more frequent intervals and I have exhausted (no pun intended) all other options. When installing the scr do I need to program anything in the computer for the new scr filter with insite?
    On a side note, I am curious... besides throwing codes and derating, will a face plugged scr cause damage to my truck similar to a plugged dpf, due to back pressure? Or would it just be polluting at a higher rate?
    I will repost in a few weeks from now if we remain code free after the scr install as I feel that this forum will be pretty helpful to other truckers!
    Thanks
     
    Kawi027, Jun 13, 2018
    Kawi027, Jun 13, 2018
    #153
    daf105paccar Thanks this.
  5. Jun 13, 2018 #154
    Goodysnap

    Goodysnap Road Train Member

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    No programming other than making sure the base engine and aftertreatment software levels are up to date.

    Keep in mind the SCR is not a filter but a catalyst. It is a flow through device, similar to the catalytic converter on the common automobile. Yes any face plugging for pore blockage can cause reduced power and poor after treatment performance. Depending on which component were plugged would have different effects.
     
    Goodysnap, Jun 13, 2018
    Goodysnap, Jun 13, 2018
    #154
    Kawi027 Thanks this.
  7. Jun 15, 2018 #155
    Kawi027

    Kawi027 Light Load Member

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    Apr 22, 2013
    LAS VEGAS, NV
    0
    Is it poss
    Is it possible to have a fautly scr with no sign of face plugging (maybe something behind the fine mesh)? When we completely pulled off the old scr and put under a bright light there did not appear to be a pore blockage on the front screen.
     
    Kawi027, Jun 15, 2018
    Kawi027, Jun 15, 2018
    #155
  8. Jun 15, 2018 #156
    Goodysnap

    Goodysnap Road Train Member

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    Yes it is completely possible. Over time the SCR can become degraded and lose its ability to convert NOX to acceptable levels. I would however check your DEF tank for debris, change the filter out and just be sure that the DEF is 32.5% as to not cause any contamination to the new SCR.

    On a side note, did you run a regen with the scr off to see how much the DPF pressure dropped if any? Are you still running the cleaned DPF and showing 3's in your regen history?
     
    Goodysnap, Jun 15, 2018
    Goodysnap, Jun 15, 2018
    #156
  9. Jun 16, 2018 #157
    Kawi027

    Kawi027 Light Load Member

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    Apr 22, 2013
    LAS VEGAS, NV
    0
    I will check def % today (running name brand stuff) peak I believe.
    Def filter was changed last year
    I did not run a regen with scr off.
    I will check the regen history in a few days to see if the levels have dropped ( I installed the new scr on Thursday).
     
    Kawi027, Jun 16, 2018
    Kawi027, Jun 16, 2018
    #157
  10. Jun 16, 2018 #158
    AModelCat

    AModelCat Road Train Member

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    DEF is hit or miss. Its shelf life drastically decreases when stored open or in warm temperatures. It really doesn't matter what brand you use or who supplies it. Its lifespan revolves around proper storage and product rotation on the warehouse shelves. I know of guys who've bought DEF from reputable dealers and its failed the hydrometer test the day of purchase.

    Also, dirt has a very negative effect on DEF. Dirt will actually change the chemical composition of DEF and cause issues.
     
    AModelCat, Jun 16, 2018
    AModelCat, Jun 16, 2018
    #158
    Kawi027 Thanks this.
  11. Jun 18, 2018 #159
    Kawi027

    Kawi027 Light Load Member

    100
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    Apr 22, 2013
    LAS VEGAS, NV
    0
    I did a forced regen the day before we installed the scr and got the hg to 0.8.
    The days following after we installed the new scr were 3.5, 3.7, 3.7 all about 12 hrs apart. I may pull the dpf down and blast high pressure water through it (i have heard others in my area doing this with no issues).
     
    Kawi027, Jun 18, 2018
    Kawi027, Jun 18, 2018
    #159
  12. Jun 21, 2018 #160
    Kawi027

    Kawi027 Light Load Member

    100
    23
    Apr 22, 2013
    LAS VEGAS, NV
    0
    Blasted out the dpf with water and air yesterday. I will post in the next few days regarding the hg #'s
     
    Kawi027, Jun 21, 2018
    Kawi027, Jun 21, 2018
    #160
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