Oil leak in Turbo Charger - Ford Powerstroke Diesel Forum
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Old 06-16-2013, 09:37 PM
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Oil leak in Turbo Charger

The MPG on my '06 F250 (82k miles) has been decreasing. I used to get about 15 mpg towing my trailer, now it's about 11.5. It also popped P0299 codes a couple times (turbo underboost). I took the turbo off and found oil in the boost air outlet side. I took the intake manifold off and found wet sticky oil in there as well.

No issues with coolant, the EGR cooler is fine. I am going to install an EGR cooler with plugs welded in the ends.

I attached pictures showing the oil in the intake and turbo. My question is: What's the best way to clean the oil out of the intake ports on the engine block?

I haven't taken the turbo apart yet, but what can I expect to find? Are oil leaks in the turbo common?

Any suggestions?
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Oil leak in Turbo Charger-img_2194.jpg   Oil leak in Turbo Charger-img_2196.jpg   Oil leak in Turbo Charger-img_2198.jpg  
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Old 06-17-2013, 05:05 AM
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Your pictures are missing.

The MPG drop could be a number of factors not related to the turbo. However, let's assume it is turbo related. It is possible the turbo needs a good cleaning of the turbine section. Sticking vanes or lots of carbon can impede flow and lead to low boost. So can cracked or loose boots, and the infamous MAP sensor hose. Same goes for the inter-cooler or cold tube and connections. Check the easy stuff first. At some point you may end up at the turbo for the inspection and cleaning.

The oil you are seeing in the hot tube and pre turbo are probably normal from the CCV. Serious oil leaks are not common.
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Old 06-17-2013, 05:26 AM
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I had this same issue and was told that this gunk was from the crank case vent. I did the ccv mod and threw a new turbo on so Ill see next time Im in their.
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Old 06-17-2013, 06:40 AM
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Thanks for the replys.

Whatever the cause, what's the best way to clean the gunk out of the intake ports in the heads?

I'll try to figure out why the pictures aren't loading. I can see them, but only when I'm logged into my account.

-Jason
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