7.3 power stroke

Discussion in 'Heavy Truck & Equipment Forum' started by GMC guy, May 12, 2015.

  1. GMC guy

    GMC guy Hero Member

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    engine ran fine. Went to start this morning, no start, and blowing white smoke (fuel) out the tail pipe. Help!

    MAKE: F450 Ford
    MODEL:
    YEAR: 1999
    MILES: approx 150k
    ENGINE
    : 7.3
    DESCRIBE ISSUE....blows white smoke out tail pipe. No start.
     
  2. EricC

    EricC Hero Member

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    Are there any DTCs set?
     
  3. JackC

    JackC wrench

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    White smoke indicates that water and antifreeze are getting into the combustion chambers, probably via a bad head gasket. Black smoke is fuel. Blue smoke is oil.
     
  4. GMC guy

    GMC guy Hero Member

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    P1280 is the dtc
     
  5. EricC

    EricC Hero Member

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    I wouldn't just assume it's a bad ICP sensor without some testing. See attached.
     

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  6. nickb2

    nickb2 Wrench. I help when I can

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    Ok, question, was this a KOEO or a KOER code? What scanner or code thingamagig got you this code? Can you post PID data?
     
  7. nickb2

    nickb2 Wrench. I help when I can

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    My big problem here is "blowing white smoke out of tail pipe" then you say no start.

    If said engine blows white smoke, said engine fires. Hence spark, fuel, combustion, etc.
     
  8. nickb2

    nickb2 Wrench. I help when I can

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    A leak down test would be cool. Also a block tester to verify if combustion gasses are indeed infiltrated in the coolant. You may have a bad head gasket. Cheap to check that out. Logic is the way to go.

    If you see white smoke, there is a definite coolant loss in the combustion chamber.
     
  9. GMC guy

    GMC guy Hero Member

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  10. GMC guy

    GMC guy Hero Member

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    You wanna here something funny, guys? A guy walked I've from across the alley, sprayed a bit of something onto the intake filter, and the truck started! It ran rough at first, like it was missing. Started it later and it ran better. So, I'm confused, but happy.
     
  11. JackC

    JackC wrench

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    Let us know WHAT he sprayed into the intake and we may be a further assistance. I doubt this is the end of the story.
     
  12. nickb2

    nickb2 Wrench. I help when I can

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    Maybe this guy just sprayed some brake cleaner or carb/choke cleaner. Probably got washed cylinders in coolant and the cleaner was the peak compression accelerant needed for lack of a better explanation. If you could post compression readings, that would be of an advantage.

    This is as Jack says, this seems like this is going to be a ongoing problem/situation. My reading of this thread is maybe a few cylinders were washed in coolant and when the guy sprayed some stuff, it ran. Ok.

    My question is, did he spray Ether??, cuz a diesel should not be able to run with something like carb or brake cleaner.
     

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