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DEF pumps

Discussion in 'Prime' started by gatorbaiter, Jan 5, 2012.

  1. Jan 5, 2012 #1
    gatorbaiter

    gatorbaiter Medium Load Member

    600
    172
    Jun 23, 2011
    3rd Rock
    0
    Well I was BT the other day to Bradenton 12/31 when my check engine light comes on. Gauges and all were fine and it was driving fine. Checked Fault and it was DEF pump. Talked to RA and they said roll with it it is happening with a lot of new trucks. Today the message came out about moisture. Well I had none as I drain everyday and it was 70 degrees in florida that day. But one more reason to drain the tanks.

    And yep it has to be the DEF pump cause I have driven 1800 miles and used no DEF. Book says you can run a bit before service.
     
    gatorbaiter, Jan 5, 2012
    gatorbaiter, Jan 5, 2012
    #1
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  3. Jan 5, 2012 #2
    dancnoone

    dancnoone "Village Idiot"

    9,922
    3,713
    May 6, 2007
    Mississippi
    0
    Moisture ??? :biggrin_25523:

    The BIG selling point of DEF is water vapor is all that remains in the exhaust.
     
    dancnoone, Jan 5, 2012
    dancnoone, Jan 5, 2012
    #2
  4. Jan 5, 2012 #3
    gatorbaiter

    gatorbaiter Medium Load Member

    600
    172
    Jun 23, 2011
    3rd Rock
    0
    i believe it was moisture in the air tanks and cold temps. DEF system uses air to push DEF into the chamber. So moisture in air system can freeze and damage components before the chamber. I am not saying this is a fact but my understanding. My bigger point was that I was in 70 degree temps and had drained my tanks as I do daily.
     
    gatorbaiter, Jan 5, 2012
    gatorbaiter, Jan 5, 2012
    #3
  5. Jan 6, 2012 #4
    ironpony

    ironpony Road Train Member

    17,502
    12,015
    Sep 23, 2007
    Ask my GPS...
    0
    It could've just died ya know!
     
    ironpony, Jan 6, 2012
    ironpony, Jan 6, 2012
    #4
  7. Jan 6, 2012 #5
    skellr

    skellr Road Train Member

    8,735
    12,187
    Jul 17, 2011
    The Village, Portmeirion
    0
    I just had a DEF tank heater go out. Truck won't run the same without a warm bottle to suck on. :biggrin_25513:
     
    skellr, Jan 6, 2012
    skellr, Jan 6, 2012
    #5
  8. Jan 6, 2012 #6
    papawbigtruck

    papawbigtruck Bobtail Member

    2
    0
    Aug 6, 2011
    clairfield,tn
    0
    Get the out gator b 4 i get my new truck
     
    papawbigtruck, Jan 6, 2012
    papawbigtruck, Jan 6, 2012
    #6
  9. Jan 6, 2012 #7
    Prairie Boy

    Prairie Boy Road Train Member

    3,258
    1,914
    Nov 18, 2010
    Edmonton, AB
    0
    The DEF (defacator) system really stinks.
     
    Prairie Boy, Jan 6, 2012
    Prairie Boy, Jan 6, 2012
    #7
  10. Jan 9, 2012 #8
    gatorbaiter

    gatorbaiter Medium Load Member

    600
    172
    Jun 23, 2011
    3rd Rock
    0
    well it just started wrking again
     
    gatorbaiter, Jan 9, 2012
    gatorbaiter, Jan 9, 2012
    #8
  11. Jan 9, 2012 #9
    SwedeBoy

    SwedeBoy Bobtail Member

    20
    1
    Jan 1, 2012
    Midcoast Maine
    0
    Should only stink if you smell what comes out of the second stage (Decomposition reactor) in the system, as that stage it has converted the exhaust into Ammonia which is stinky indeed.
     
    SwedeBoy, Jan 9, 2012
    SwedeBoy, Jan 9, 2012
    #9
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