No def consumption

Discussion in 'Freightliner Forum' started by Bpat, Oct 19, 2018.

  1. Bpat

    Bpat Bobtail Member

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    2012 Freightliner Cascadia dd15 has not used any def with last three tanks of fuel. The truck has not thrown any codes and is not derated. Any ideas?
     
  2. AModelCat

    AModelCat Road Train Member

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    Gauge not working? Unless there was some kind of a delete done there should be all kinds of faults and warning lights going off if it hasn't used any DEF.
     
  3. pmdriver

    pmdriver Road Train Member

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    Next post coming: Why did I lose all power, I can only go 5 mph.
     
  4. mhyn

    mhyn Road Train Member

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    no. not going to happen that.
     
  5. mhyn

    mhyn Road Train Member

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    the acm could be bad...
     
    QUALITYTRUCK Thanks this.
  6. Bpat

    Bpat Bobtail Member

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    Could this hurt the scr, doc since it’s not getting def? Already put about 2000 mikes on it before I noticed it wasn’t using def, I have about 2000 more before I get home to repair it
     
  7. mhyn

    mhyn Road Train Member

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    DOC is located between engine and dpf. So no way to damage it.
     
    Last edited: Oct 20, 2018
  8. Cattleman84

    Cattleman84 Road Train Member

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    This exact thing happened to me in a Volvo... About 4 days after it quit using def it finally derated me and threw a bunch of codes. The power wire to the aftertreatment control module broke.
     
  9. mhyn

    mhyn Road Train Member

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    4 days ?
    wow that's alot. the dd15 will throw codes right away.
     
    Cattleman84 Thanks this.
  10. Bpat

    Bpat Bobtail Member

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    Hey what ya wrote all before scr is not in English, can you reply again?
    Thanks