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02 7.3 no power

Discussion in 'Ford Trucks' started by vmj, Dec 27, 2013.

  1. vmj

    vmj Senior Member
    from conn
    Messages: 752

    no power to get truck moving up slight incline in mornings.. not every morning.. seams like on cold mornings... Truck is kept in garage..
     
  2. Briarpatch

    Briarpatch Junior Member
    Messages: 3

    Ford had mine for 2 months and couldn't fix it Traded it in on a GMG !!!!
     
  3. jrs.landscaping

    jrs.landscaping Senior Member
    from Maine
    Messages: 638

    Fuel filter?

    Does it throw a code?
     
  4. vmj

    vmj Senior Member
    from conn
    Messages: 752

    I would think if fuel filter it would do it all the time
     
  5. vmj

    vmj Senior Member
    from conn
    Messages: 752

    no code is thrown
     
  6. jrs.landscaping

    jrs.landscaping Senior Member
    from Maine
    Messages: 638

    Maybe it picks something from the bottom of the bowl, then settles after running? It happened with our 08, happened to be a piece of rust.
     
  7. vmj

    vmj Senior Member
    from conn
    Messages: 752

    good point I guess its worth changing..
     
  8. kimber750

    kimber750 PlowSite Veteran
    Messages: 3,601

    Is it making a hissing sound? When was the oil last changed? Does it get better after driving 10-15 minutes? These trucks basically block of the exhaust before the turbo to help the engine warm up faster. This also keeps from making any boost. You can let it idle all you want in the cold and it never really gets warm until you drive it. So without boost these engines are real dogs.
     
  9. vmj

    vmj Senior Member
    from conn
    Messages: 752

    oil was just changed.. thought it was low but that is not the case if I let it ideal a bit while geeting coffee it goes into that hiss... at the times when it low power it does run better after 10-15
     
  10. vmj

    vmj Senior Member
    from conn
    Messages: 752

    it has only done this one other year a couple of times...
     
  11. kimber750

    kimber750 PlowSite Veteran
    Messages: 3,601

    But is it hissing when you are trying to drive. Almost sounds like a air leak. Next time it does it try giving it more throttle until the hissing goes away, should see a huge jump in power.
     
  12. vmj

    vmj Senior Member
    from conn
    Messages: 752

    no hissing when driving.. I have mashed pedel to floor, and nothing... some times it starts to catch and goes...
     
  13. goel

    goel PlowSite.com Addict
    Messages: 1,079

    Probibally cold and the turbo is getting old and not engauging until the oil warms up enought.
     
  14. meyer22288

    meyer22288 Senior Member
    Messages: 999

    Mine makes that hissing sound and i cant locate it what causes that.
     
  15. kimber750

    kimber750 PlowSite Veteran
    Messages: 3,601

    It is normal until the engine warms up.
     
  16. Mark Oomkes

    Mark Oomkes PlowSite Fanatic
    Messages: 10,853

    I have no idea and don't care what a GMG is, but the 7.3 is one of the most reliable diesel engines out there. Trading it in because some idiot at a dealership couldn't diagnose a problem is ridiculous.

    Anywho, have you had the injectors checked? Sounds like stiction. Most of mine have it as well. Let them warm up fully--not necessary to drive it to warm in up--and they run fine. Take off when cold and they have a hard time moving.

    Start with a fuel filter. Then move on to injectors. Even 1 or 2 or 3 will cause problems. I highly doubt it's the turbo.
     
  17. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,933

    How many miles?
     
  18. coldcoffee

    coldcoffee Senior Member
    Messages: 776

    Cam sensor or harness issue perhaps.
     
  19. Mark Oomkes

    Mark Oomkes PlowSite Fanatic
    Messages: 10,853

    Not if it goes away when it warms up.

    Cam sensors are hit and miss, not just cold.

    Same with wiring harnesses.
     
  20. cretebaby

    cretebaby PlowSite Veteran
    Messages: 4,162

    It's an oil valve (not sure what it's called for sure). It's at the top and back of the engine. It's fairly time comsuming repair (read expensive). My ole powerstroke needs it done but I deemed it not worth it unless I go in for something else as well.

    Just warm the truck up more first and it won't be an issue.