2012 ram 2500, 68RFE issue

Discussion in 'Tow Rigs and Trailers' started by GONOVRIT, Nov 23, 2019.

  1. GONOVRIT

    GONOVRIT blue collar brotherhood

    Joined:
    Apr 10, 2005
    Location:
    Dallas NC
    2012 ram ctd with 68RFE, 104k miles, deleted with GDP tuning. Intermittent issues with dead pedal from a dead stop or hard acceleration and gears 3,4,5 sometimes hanging up and not wanting to shift. Truck isn’t throwing ANY codes.

    Does anyone know what this could be or someone to take it to in between Charlotte and Hickory?
     
  2. tsconver

    tsconver Well-Known Member

    Joined:
    Nov 3, 2007
    Location:
    Durham, NC
    Sounds like two different issues.

    Dead pedal could be the accelerator failing.

    Shifting is likely the trans dieing from the tune and extra power.

    I would ask GDP about the issues as well.

    Maybe post up on cummins forum.
     
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  3. Stuntman Autoworks

    Stuntman Autoworks Instigator of things

    Joined:
    May 6, 2010
    Location:
    Sanford NC 27330
    You can datalog with the efilive tuner and send that file to GDP to review and they can tell you if they see anything.
     
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  4. braxton357

    braxton357 Robot

    Joined:
    Apr 6, 2005
    Location:
    Morganton
    I've got a 6 spd perfect for a slide in I'll sell you.
     
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  5. Jody Treadway

    Jody Treadway Croc wearing fool Moderator

    Joined:
    Mar 20, 2005
    Location:
    Hendersonville, NC
    Contact @Hurdt299 on here.
    He can lead ya in the right direction if tuning will help
     
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  6. GONOVRIT

    GONOVRIT blue collar brotherhood

    Joined:
    Apr 10, 2005
    Location:
    Dallas NC
    Got this back from the tuner, post data log.

    “Okay on that one he is draining rail pressure super bad! Like 10kpsi bad. So they might have a bad pressure relief valve or a injection pump going out.”
     
  7. Jody Treadway

    Jody Treadway Croc wearing fool Moderator

    Joined:
    Mar 20, 2005
    Location:
    Hendersonville, NC
    Pressue relief valve is a fairly easy diagnosis. IIRC, we would look for fuel in the return side at loads where the PRV wouldn't be functioning. If there waa fuel present, the PRV was opening too soon.
    I'd make sure your lift pump is supplying enough fuel too as well as checking the filter(s).
     
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