2 check engine lights on and my DEF fuel light on but I just filled DEF tank

Discussion in 'Freightliner Forum' started by Andy at ABC TOWING, Aug 4, 2016.

  1. Bledfor Days

    Bledfor Days Bobtail Member

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    Jan 9, 2016
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    Its in the shop now. I'll know today what they find.
     
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  3. GameDayDog

    GameDayDog Bobtail Member

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    Apr 25, 2017
    USA
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    Welp same issue just brought me here... 2 amber engine lights were on at first. I was having problems going over 55 mph too. Didn't think anything of it because I was hauling uphill.

    About 50 miles in, the DEF starts blinking, but my DEF tank is full. While reading this thread & preparing to see my pockets get lighter, the DEF light just stopped blinking. #RandomAF

    Guess I'll be changing the sensors, inspecting the wiring & cleaning the connectors. Does anyone have any part numbers?
     
  4. danny23tx

    danny23tx Road Train Member

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    Feb 16, 2016
    Austin,Tx
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    Yeah sounds like sensor's , any codes on the dash?
     
  5. GameDayDog

    GameDayDog Bobtail Member

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    Apr 25, 2017
    USA
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    Absolutely...

    ENG 1 SPN 2631 FML 1 - Low Air flow
    EEC 61 SPN 4364 FML 18 - NOX sensor
    EEC 61 SPN 3364 FML 2 - Bad DEF quality

    I got fuel & DEF at Love's in Pecos, TX. Spent a 10 in Van Horn. Started up & had all these codes & engine lights. Did a parked regen in El Paso.

    Pointed her East, set the cruise to 70 & I've made it to Midland so far without any issues..
     
  6. danny23tx

    danny23tx Road Train Member

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    Feb 16, 2016
    Austin,Tx
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    Wow , when my sensor wires were chafing and shorting out I got a bunch of funny codes on and off , sometimes they would clear other times not . Eventually went into limp mode many miles later . Changed bothe sensors and reset light and all was good . Goodluck
     
    GameDayDog Thanks this.
  7. GameDayDog

    GameDayDog Bobtail Member

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    Apr 25, 2017
    USA
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    Well.. i didn't do anything but the parked regen.. I picked up my next load in Dallaa. Started the truck & all my codes had cleared.. Knock on wood she stays that way for a week or two.. hahaha
     
  8. danny23tx

    danny23tx Road Train Member

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    Feb 16, 2016
    Austin,Tx
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    Fun stuff ! Geez
     
  9. Aron

    Aron Bobtail Member

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    Nov 13, 2016
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    How do you do a forced regen? I have 2011 with dd15 won’t do a regen
     
  10. Aron

    Aron Bobtail Member

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    Nov 13, 2016
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    Also I have the two yellow engine lights on and a flashing yellow light on my DEF gauge and I have one code that is EEN 3361
     
  11. danny23tx

    danny23tx Road Train Member

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    Feb 16, 2016
    Austin,Tx
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    You might have a derate soon , could be faulty wiring or the metering unit . There is another thread if you search ( spn 3361 ) I believe the guy disconnected his speed sensor to get home and get it fixed .
     
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