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.

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  1. Bledfor Days

    Bledfor Days Bobtail Member

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    Its in the shop now. I'll know today what they find.
     
    Bledfor Days, Jul 23, 2020
    #31
  2. GameDayDog

    GameDayDog Bobtail Member

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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?
     
    GameDayDog, Sep 7, 2020
    #33
  3. danny23tx

    danny23tx Road Train Member

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    Yeah sounds like sensor's , any codes on the dash?
     
    danny23tx, Sep 7, 2020
    #33
  4. GameDayDog

    GameDayDog Bobtail Member

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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..
     
    GameDayDog, Sep 8, 2020
    #34
  5. danny23tx

    danny23tx Road Train Member

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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
     
    danny23tx, Sep 8, 2020
    #35
    GameDayDog Thanks this.
  6. GameDayDog

    GameDayDog Bobtail Member

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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
     
    GameDayDog, Sep 9, 2020
    #36
  7. danny23tx

    danny23tx Road Train Member

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    Fun stuff ! Geez
     
    danny23tx, Sep 9, 2020
    #37
  8. Aron

    Aron Bobtail Member

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    How do you do a forced regen? I have 2011 with dd15 won’t do a regen
     
    Aron, Sep 10, 2020
    #39
  9. Aron

    Aron Bobtail Member

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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
     
    Aron, Sep 10, 2020
    #39
  10. danny23tx

    danny23tx Road Train Member

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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 .
     
    danny23tx, Sep 10, 2020
    #40
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