Ford F250 Engine stalling

Discussion in 'Domestics' started by dmwest, Nov 29, 2017.

  1. dmwest

    dmwest Newbie

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    Please fill out the following to ask a question.

    MAKE: Ford
    MODEL: F250
    YEAR: 1996
    MILES: 163000
    ENGINE: 7.3L Superduty Vin F
    DESCRIBE ISSUE
    ....

    "NO codes are or have been set" Engine stalling after driving about 2-3 miles. Fuel Filter was changed to address stalling issue and would not start after filter change. I became involved at this point (never worked on one before) and decided to remove the filter to make sure it was installed correctly. The filter bowel was empty so I added fuel to the bowel and put the cap on. Engine did start then and ran for about an hour at idle and thru a couple loops around the parking lot. Looked good so got on the road for a 10 mile trip and engine died about every 2-3 miles. Putting fuel in the bowel would get it going again for another 2-3 miles. I suspect fuel pump of fuel line blockage but I cannot find a manual that covers this vehicle/engine setup. Can you guide me to what and how to check what needs to be done.

    Thank You
     
  2. Mobile Dan

    Mobile Dan wrench

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    I'm not a diesel expert by any means, but I would suspect the "lift pump" is weak or failing intermittently.
     
  3. dabunk

    dabunk wrench

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    Bad lift pump correct
     
  4. nickb2

    nickb2 Wrench. I help when I can

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    Don't recall a lift pump on a 1996 vin "F". I do on a 94 vin "K" though.

    Maybe they have a different name for the lift pump with that newer version "F" engine of that era with the cap cover for the filter, but I don't recall that. Just trying to help the OP locate that if he wants to. Alldata is NOT showing me a lift pump for the "F" engine.

    There is however a piston actuated second stage to transfer pump for the heads to get 40-50psi to get to the rails. Could that be what you guy's are referring to for this guy's "F" engine? Here are some diagrams to help. Vin F and Vin K were both available in 94. The lift pump was not there for a 7.3l turbo in 96, unless alldata is wrong, and that wouldn't be the first time. Screenshot (130).png Screenshot (131).png
     
    Last edited: Nov 30, 2017
  5. dmwest

    dmwest Newbie

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    Thank you all for your help. The first diagram Nickb2 posted match's the engine and I have other sources that refer to the pump as a Transfer pump. Again, thank you for the help.

    Mike
     

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