2001 Ford F350 Super Duty SuperCab Logo
Posted on Apr 29, 2009
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Smoke from exhaust when decelerating on Ford F-350 Powerstroke

I have a 2001 Ford F-350 Powerstroke 7.3 Liter Diesel that is puffing bluish black colored smoke when you take your foot off the gas pedal. The slower the vehicle goes the more smoke comes out. The smoke smells like burning oil or burnt rubber. Does anyone have any idea what may be wrong so I can fix it?

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  • hoofinround Apr 30, 2009

    I just had the CAC tubes, O-rings in Y-Pipes and the Carm Reman Pedestal Asy replaced a week ago. It was dripping oil severely then. Now not dripping, just smoking. I believe the turbo oil seal is what has already been replaced, so does that mean it would be narrowed down to the valve stem seals?

  • Kimberly Girard
    Kimberly Girard Mar 23, 2017

    injector o'rings or not torqued tight enough

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Marvin

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  • Ford Master 85,242 Answers
  • Posted on Apr 29, 2009
Marvin
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Either valve stem seals are leaking or the turbo oil seal is leaking.

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