Oil coming from tailpipe - Ford Powerstroke Diesel Forum
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Old 01-30-2014, 12:10 PM
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Oil coming from tailpipe

Have a bit of a situation with my 2004 6.0L. About 2 weeks ago I noticed my truck would have a slight bit of smoke that smelled of raw diesel and oil coming from the exhaust. The strange part is that it only does it while at an idle and it is intermittent (yesterday it didn't smoked at all). Well today I noticed the inside of the tailpipe is heavily coated in oil, with a small drop about to hit the ground.

Truck only has 128k miles. EGR delete from river city diesel and im running a street tune from innovated diesel.

Would this be a turbo seal causing the problem? Thanks for any help

Last edited by badbehavior; 01-30-2014 at 12:19 PM.
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Old 01-30-2014, 12:46 PM
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It is a possibility but before ya condem anything double check that it is actually oil.

Condensate and carbon mixed together have fooled a lot of people it will look, smell and even taste like an oil product its just doesn't feel the same.

A overfueling injector, worn rings and the turbo seals can all cause this.
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Old 01-30-2014, 12:56 PM
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i had the same situation on my 6.0 last month, had my tail pipe with oil and smoked, took turbo out and found it to be leaking, luckily i had an 03 turbo so slapped it on...
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Old 01-30-2014, 01:23 PM
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I forgot to mention that the truck runs great. Hell, it fired right up when it was -11F the other morning. Turbo still spools up like normal and the gauge reads 10psi while cruising at 55mph and 25 or 28psi at WOT.
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Old 01-30-2014, 02:16 PM
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Really, the smoke smells more of raw diesel than anything else. Would it be plausible to think the motor oil would be so thinned out from letting it warm up in the mornings? I'm thinking maybe wet stacking....hope that's the correct term. Its been 20k miles since my last oil change. Other forums I've read of lots of people running 15-20k before changing the oil. Just some of my theories.
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Old 01-30-2014, 02:19 PM
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well my truck ran great too didn't effect performance
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Old 01-30-2014, 02:58 PM
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Possible, anything that goes thru the cylinder will eventually come out the other end [the exhaust]
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Old 01-30-2014, 03:50 PM
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Quote:
Its been 20k miles since my last oil change. Other forums I've read of lots of people running 15-20k before changing the oil. Just some of my theories.
I sure hope that is with a good analysis! The HEUI injectors require regular oil changes (shear and dilution) or you can suffer the damages caused by lack of maintenance. These are not common rail engines, nor do they have a high pressure fuel pump. Your observation may be a result of your oil change policy.
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Old 01-31-2014, 04:04 PM
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Had something very similar, turned out to be a loose pipe clamp on the back of the turbo. It was loose as a goose! Tightened it up... easy, fast fix to the problem... good luck, Buddy!
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