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SPN 4334 FMI 18

Discussion in 'Trucks [ Eighteen Wheelers ]' started by tobie town trucker, Feb 8, 2019.

Page 2 of 3
  1. Feb 11, 2019 #11
    Goodysnap

    Goodysnap Road Train Member

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    The information direct from QSOL says it is.
     
    Goodysnap, Feb 11, 2019
    Goodysnap, Feb 11, 2019
    #11
    Wheeljack and Heavyd Thank this.
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  3. Feb 11, 2019 #12
    Heavyd

    Heavyd Road Train Member

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    Ok, what is it?
     
    Heavyd, Feb 11, 2019
    Heavyd, Feb 11, 2019
    #12
    Wheeljack Thanks this.
  4. Feb 11, 2019 #13
    mhyn

    mhyn Road Train Member

    4,255
    4,515
    Dec 29, 2008
    Northridge, CA
    0
    I was wrong, you are correct. I was thinking it's low nox conversion code.(4364)
     
    mhyn, Feb 11, 2019
    mhyn, Feb 11, 2019
    #13
    spsauerland Thanks this.
  5. Feb 11, 2019 #14
    spsauerland

    spsauerland Road Train Member

    4,296
    10,891
    May 31, 2010
    West Harrison, In
    0
    Don't feel bad, I did too through a quick Google search and by parts replaced.
     
    spsauerland, Feb 11, 2019
    spsauerland, Feb 11, 2019
    #14
    Wheeljack, Goodysnap, SAR and 1 other person Thank this.
  7. Feb 11, 2019 #15
    Grumppy

    Grumppy Trucker Forum STAFF Staff Member

    3,174
    11,079
    Dec 11, 2010
    West Monroe, La
    0
    [I'm not going to get into this conversation because I know less than zero about diesel engines & less about DEF but.. I learned long ago on old pre-80's gas engines.... look at the simple stuff. Possibly a bad sensor rather than the system itself?]
     
    Grumppy, Feb 11, 2019
    Grumppy, Feb 11, 2019
    #15
  8. Feb 11, 2019 #16
    Goodysnap

    Goodysnap Road Train Member

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    The pressure sensor is internal to the dosing unit/pump and has allready been replaced.
     
    Goodysnap, Feb 11, 2019
    Goodysnap, Feb 11, 2019
    #16
    spsauerland and Grumppy Thank this.
  9. Feb 11, 2019 #17
    uncleal13

    uncleal13 Road Train Member

    3,797
    6,296
    Apr 9, 2009
    Humboldt, Sk
    0
    Low or erratic DEF pressure.
    Don't know about Cummins, but Detroit has a little tiny filter where the def line goes into the def injector.
    Funny thing is, the def system on a Detroit is made by Cummins
     
    uncleal13, Feb 11, 2019
    uncleal13, Feb 11, 2019
    #17
    mhyn Thanks this.
  10. Dec 2, 2019 #19
    Samuel2736

    Samuel2736 Bobtail Member

    2
    0
    Dec 2, 2019
    0
    I'm curious to know if you were able to get the problem resolved... I'm having exact same issues already spent 4k
     
    Samuel2736, Dec 2, 2019
    Samuel2736, Dec 2, 2019
    #19
  11. Dec 2, 2019 #19
    Samuel2736

    Samuel2736 Bobtail Member

    2
    0
    Dec 2, 2019
    0
    Were you able to find the problem? Same thing happening to me with my 2013 cascadia already dropped $4k and light came back up.
     
    Samuel2736, Dec 2, 2019
    Samuel2736, Dec 2, 2019
    #19
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