f250 6.0 oil in intake pipes - Diesel Bombers



Ford Powerstroke 03-07 6.0L Discussion of 6.0 Liter Ford Powerstroke Turbo Diesels

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Old 04-14-2012, 07:09 PM
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Default f250 6.0 oil in intake pipes

I have a 2003 F250 Powerstroke. We are changing the injectors and when we pulled the air intake and the pipe on the other side leading up to the turbo we found oil in both. Does anyone know what would cause this and how to fix it.
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Last edited by wmleeiii; 04-14-2012 at 07:15 PM.
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Old 04-15-2012, 01:08 PM
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Moved to the correct forum...

However some oil in the IC pipes is normal from the Crank Case Vent and its location.
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Old 04-15-2012, 01:42 PM
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Our 6.0L has that issue its due to a bad seal in the turbo...
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Old 04-15-2012, 05:07 PM
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CCV mod will help stop the oil in the intake.
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Old 04-15-2012, 05:09 PM
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No, it is not a bad seal, when you pulled the air intake off there was a hose that attached to the top of the valve cover, it is basically the PCV valve for a diesel, it is a EPA thing so instead of dumping oil and fumes to the atmosphere it is taken into the intake system and burned in the cylindes, you can get a oil/air seperator from Jegs and replumb it so ou don't get the oil in intake anymore, some guys run a long tube from the valve cover towards back of the truck but this is not the best thing to dobecause the air has to be forced out of tube but when you put a vaccum on the tube it helps seal the rings better in the motor like it was desighned to do.
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Old 04-16-2012, 06:31 PM
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Thanks for the reply guys. I was told by my mechanic/step dad turns out I have a burnt piston and somehow oil is getting into the turbo. He figured this out by taking the oil cap off and turning the engine over. Every time the engine missed we got blow by coming out of the valve cover. Looks like I will be rebuilding the engine. And changing the O rings in the turbo just to be safe. Any suggestions on how to proceed or if this could be a different prob entirely?

By the way, other symptoms are: Hard starting, White smoke, Rough Idle, Misfire, and now that we changed the injectors it stalls out after about ten miles and won't start until it has sat for a while. When this happens we can see oil dripping under the truck. (Thats how we found out the turbo was filling with oil)

Last edited by wmleeiii; 04-16-2012 at 06:37 PM.
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Old 04-16-2012, 10:07 PM
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Kind of doubt you burnt a piston, either loose injector or loose glowplug could cause the same thing, make sure you tighten the injector hold downs to 25ftlbs plus a little umph for good measure. the oil leak on the back is most likely a bad ICP sensor wich will leak oil when they go bad, also will cause it to stall out. I had a dead miss on my truck and I was able to repair the injector, 2nd one I did, you could also have a high presure oil leak, it could be the snap to connect fittings on the oil rails, did you remove them all the way when you did injectors or just move them out of the way? If you can have it scanned it would tell you if the icp sensor was bad.

---AutoMerged DoublePost---

Also, every single 6.0 that came off the line will have oil in the turbo tubes unless it was modified to eliminate it.

Last edited by bobfbigman; 04-16-2012 at 10:07 PM. Reason: Automerged Doublepost
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Old 04-16-2012, 10:35 PM
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I have to agree with bob. Unless you are running magor mods and high egt's I duobt you burnt up a piston. And the ccv canister mod was the #1 favorite mod ive done to my truck to date. Although you will be suprised by the ammout of oil in it after 5k miles.
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Old 04-17-2012, 09:36 AM
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You seriously need to get that thing on a scanner with someone who knows diesels, whoever you're dealing with now, clearly does not. Bob hit the nail on the head.
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Old 04-18-2012, 10:49 AM
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I've had it on a scanner and the only codes we got back were for a misfire on cylinder 1 and 2 and a bad brake switch. After replacing everything we are still getting misfire on two with the scanner, only now it's stalling after ten miles. Before I could drive it all day and it would just smoke like crazy. And you are right he does not know diesels. He has been a transmission mechanic for 26 years. However, he called a friend for advice on it that works for ford strictly on their diesels, according to him if you get blow-by exactly when it misses thats a bad piston

@Bob - When we removed the oil rails we only took the bolts out and moved it out of the way. The ICP sensor was replaced about two years ago and we haven't got a code for it. So your saying the blow-by could be caused by a loose injector or glow-plug?

@Josh - Yea the only major mod done was the 8 inch suspension lift. I haven't really done any mods to the engine. I was thinking about doing the CCV canister mod. Do you have a link on a good way to do it?

Thanks again everyone for the replies
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