2002 Ford F550 7.3 Failing Under Load

Discussion in 'Heavy Equipment & Pavement' started by rawtoxic, Jul 21, 2014.

  1. slowleak1

    slowleak1 LawnSite Senior Member
    Posts: 532

    Please explain how it is possible? :dizzy:
     
  2. slowleak1

    slowleak1 LawnSite Senior Member
    Posts: 532

    Im 99% sure I said that before you posted all your BS....Just saying.
     
  3. Mark Oomkes

    Mark Oomkes LawnSite Fanatic
    Posts: 11,792

    It sure is, but when you get to a certain "low" point with Powerstrokes, you won't be driving them anymore. Because they can't build low pressure oil which builds high pressure.
     
  4. dieselss

    dieselss LawnSite Bronze Member
    Posts: 1,564

    Started trk in the morning, was cold so it took 2 cycles to fire so I didn't think nothing of it. Drove 50 miles to work. Started it up after work, was cold again and didn't plug it in so took 2 cycles with the remote start. Got home, cke the oil,,,,,ummnn 8 quarts low. Found out I had hp oil line leak
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  5. dieselss

    dieselss LawnSite Bronze Member
    Posts: 1,564

    This is the only oil issue posted. And sorry but you didn't specify how low is to low, and I said they will run low on oil
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  6. slowleak1

    slowleak1 LawnSite Senior Member
    Posts: 532

    Ahh but it was still running wasnt it? As mark stated already, once it stops building pressure the injectors dont fire. So yet again, your answer does NOTHING to solve the OP's original problem.
     
  7. dieselss

    dieselss LawnSite Bronze Member
    Posts: 1,564

    Yes it does,,,,up hill and oil following gravity,,,,, how much is gunna end up in hopo?
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  8. dieselss

    dieselss LawnSite Bronze Member
    Posts: 1,564

    Don't matter anyway at this point. No codes, or reply to the oil so like was said guessing
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  9. wbdodgeiv

    wbdodgeiv LawnSite Member
    Posts: 22

    While your pulling codes, which takes a OEM level scan tool as they aren't OBDII compliant, I would recommend checking the IPR duty vs ICP pressure.
     

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  10. AWJ Services

    AWJ Services LawnSite Platinum Member
    from Ga
    Posts: 4,276

    One issue I had on my truck was the strainer stopped up in the tank. It actually caused multiple eroneous codes. The fuel pressure would get low and the truck would lose power. Eventually it went to a no run situation. Then it would cool off and run again.

    If the oil is old they can lose power from aeriation.

    Like everyone said check codes first.

    http://guzzle.rbmicro.com/7pt3/Mods.html

    Here is some good info.

    This is the info on the tank strainer.

    http://www.guzzle7pt3.com/hutch.php
     

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