Mechanics

I HAVE A QUESTION ABOUT MY F250

1997 Ford F-250 • 332,000 miles

The truck has a 7.3 powerstroke and when I start it up in the cold it smokes white really bad then it turnes into light blue and also it slightly smokes light blue at operating temp. I have outruled the injector o rings. Turbo o rings, piston rings and injector cups. Could it be the fuel pressure regulator?
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97stroker
January 29, 2012.




Light blue smoke is oil burning, you may have bad vale stem seals and worn valve guides.
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Mhpautos
Jan 29, 2012.
The white smoke sounds like coolant. Check to make sure the coolant isn't going low.


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