03 running issues

Discussion in '5.9L 3rd Gen Cummins' started by Gary79F250, Oct 20, 2013.

  1. Gary79F250

    Gary79F250 The Bawston Whalah

    Posts:
    156
    Likes Received:
    0
    Joined:
    Sep 16, 2005
    Location:
    Cape Cod, MA
    Im trying to help out a friend with his 03. The truck will run at idle, will tach up when not under load and die when the pedal is let off. It is not throwing any obd codes, I can manualy run the transfer pump with my solus, it has fuel, the obvious has been checked. the truck will die at idle when put in gear also.I am planning to take my fuel pressure at the filter housing tomorrow, it acts as if its starving for fuel. filter is good, no air in fuel etc. any help would be appreciated thanks, Gary
     
  2. lpennock

    lpennock Full Access Member

    Posts:
    65
    Likes Received:
    0
    Joined:
    Apr 12, 2008
    Location:
    Chandler, AZ
    Check Lift pump pressure. A bad lift pump will also toast the VP44.
     
  3. Gary79F250

    Gary79F250 The Bawston Whalah

    Posts:
    156
    Likes Received:
    0
    Joined:
    Sep 16, 2005
    Location:
    Cape Cod, MA
    I intend to today, i also have learned that this was run on bio fuel, local homebrew stuff. I have ~2500 psi rail pressure at idle.
     

Share This Page