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  1. sam shelly

    7.3 IDI won't stay running

    I finally got the mini moose injection pump from Conestoga/Moose Diesel and it fixed the issue. Still have to adjust timing but at least it runs and drives now without dying. Thanks everyone for the suggestions and help. Quick question - I have the pump lined up with the line on the housing and...
  2. sam shelly

    7.3 IDI won't stay running

    Adjusting the pump timing doesn't seem to make a difference. Truck still dies after 10 - 15 min of driving. I've ordered moose injectors and return line kit to rule out any leaks in the return line system before I get a new injection pump. If that doesn't work then I'll be getting a pump from...
  3. sam shelly

    7.3 IDI won't stay running

    I didn't remove the gears when replacing the IP. If I understand correctly then that means the timing should still be the same? I lined up the line on the IP and the line on the housing when putting it back in. Guess I'll be requesting another replacement pump and doing it for a third freaking...
  4. sam shelly

    7.3 IDI won't stay running

    Having issues again once the truck warms up now. The truck runs like a top when cold but once it's warmed up it loses power. Drove fine on the way to the gas station but on the way back it would shake violently and stall constantly. Was barely able to go 10mph with the pedal to the floor. Does...
  5. sam shelly

    7.3 IDI won't stay running

    Sorry for the late update. Truck has been sitting the past month to save up funds for a new injection pump. The only options seemed to be ~$400 for a pensacola IP or ~$1000 for a higher quality pump, so I went with the pensacola despite their reputation. The first one they sent me would...
  6. sam shelly

    7.3 IDI won't stay running

    I was wrong about the check valve...the old ball was actually still in there I just didn't see it. Replaced it with the new check valve and still having the same issue - runs for a few seconds then dies. I can still get it to run if I block off the check valve and return hose like in the...
  7. sam shelly

    7.3 IDI won't stay running

    I think I finally found the issue. Pretty sure it's the check valve that connects the return hose from the injector to the fuel filter. Took it off and there was a spring but no ball and I could blow right through it. Plugged the end on the fuel filter with a fitting and blocked the hose off...
  8. sam shelly

    7.3 IDI won't stay running

    Fuel pressure off the Schrader valve is 5-6 psi with pump on engine off and about the same at idle. It rises to about 10psi just before it stalls
  9. sam shelly

    7.3 IDI won't stay running

    Sorry I will try to make things more clear. Yes the pump was installed by me this week because I suspected the mechanical pump might be causing the issue. The electric pump made it start easier but engine still stalls. Attached some pictures of the wiring setup. It's controlled by a 4 pin...
  10. sam shelly

    7.3 IDI won't stay running

    Right the red wire from the IP goes to a post on a relay to power the facet pump. The red on the facet pump is connected to another post on that relay. The thicker red wire was there already and is connected to the starter solenoid
  11. sam shelly

    7.3 IDI won't stay running

    That wire is the key on for the electric fuel pump and goes to a relay. It's connected to the bolt with a ring terminal. I believe the wetness is diesel that shot out of the shrader valve that I failed to clean up all the way So the facet pump gets fuel from a hose connected to the metal line...
  12. sam shelly

    7.3 IDI won't stay running

    The fuel filter light actually hasn't come back on since replacing the filter and adding the electric pump. When I replaced the filter I filled it with diesel kleen and bled the air through the shrader valve. Looked at the lines while my friend started the engine and didn't see any bubbles. I...
  13. sam shelly

    7.3 IDI won't stay running

    I don't know how old it is, I've only owned the truck about a month and driven about 200 miles. The truck has about 200,000 miles. Pump looks like it could be pretty old
  14. sam shelly

    7.3 IDI won't stay running

    Hello I'm having trouble figuring out why my truck won't stay running. It's a 93 f250 with the 7.3 IDI. One day I was driving and the fuel filter light came on and the truck stalled shortly after. It would start back up easily but only for a second then stalled again and again and had to have it...

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