Blue smoke out of exhaust

OlphinSRT · Apr 10, 2015

Anyone think running a line from the pcv system to a venturi on the exhaust would benefit this issue?

ahduckit · Apr 10, 2015

noticed mine doing it today. Im going to revert back to stock and run the hell out of it until its spewing oil out the tailpipes. not really but did notice it today. going to the dealership in the morning and see what they say.

Fast64ranchero · Apr 12, 2015

Hey guys, new member here! I was at the track today, Idling in the staging lane and the smoke started rolling, and I mean smoking very bad. I'm gonna put the stock down pipe back on tomorrow. Interesting my car has never smoked at all then all at once, it is pooring smoke out.

MagnaFlow · Apr 12, 2015

ThatsMrGimp2U said:
At idle? And no. I don't have a lot of faith in the pcv system on this car but can it really be that bad?

Sent from my XT1096 using Tapatalk

We haven't had enough experience with the 2.3 yet, but the 2.0 from the Focus ST definitely needs a catch can. We generally run a catch can on anything forced induction, just to be safe. Doubly so if it is a direct injection motor!

Also, when we were developing our system for the Ecoboost Mustang we noticed that there was almost no difference in power when running without a cat. We're talking maybe 2-3hp and the car ran significantly worse without it. We always recommend that you run with a cat if your car was designed to have one!

Frogger · Apr 17, 2015

boosted_orange said:

Orange: Did you get your turbo replaced? Are you still blowing smoke rings?

boosted_orange · Apr 17, 2015

Frogger said:
Orange: Did you get your turbo replaced? Are you still blowing smoke rings?

Hey Frogger the warranty turbo was 3 days out when I checked on Wednesday so soon as it comes in I will be updating..was it you or a different member that messed up their turbo?

Ecobeast305 · Apr 17, 2015

My turbo was messed up. It took 2 weeks but ford fixed it. They also fixed the front bumper and the interior rattle noise which turn up to be the AC vent.

boosted_orange said:
Hey Frogger the warranty turbo was 3 days out when I checked on Wednesday so soon as it comes in I will be updating..was it you or a different member that messed up their turbo?

boosted_orange · Apr 17, 2015

Ecobeast305 said:
My turbo was messed up. It took 2 weeks but ford fixed it. They also fixed the front bumper and the interior rattle noise which turn up to be the AC vent.

Was yours also smoking at idle..?

Ecobeast305 · Apr 17, 2015

Yes tons of it!!!

boosted_orange said:
Was yours also smoking at idle..?

BGolden · Apr 18, 2015

Correct. I am 100% this has more to do with the PVC system than the turbo. Ours had positive crank case pressure at idle as well. As soon as you touch the throttle it goes away.

Evil87GN said:
I bumped the idle up a bit and did the swap to T6, and so far no smoke. One thing I did notice is these cars truly use a positive crankcase ventilation system....as in pop the oil fill cap, you get air blowing out. I checked another EB at the dealership, and it does the same thing. Makes me wonder if this is pushing oil pressure up at the turbo just enough at idle that it leaks a little. Crack the throttle, exhaust pressure builds enough to balance the pressure on the seal, no more leak. Anyone have a schematic of the PCV system on the EB? I'm really curious how the system design/function.

boosted_orange · Apr 18, 2015

BGolden said:
Correct. I am 100% this has more to do with the PVC system than the turbo. Ours had positive crank case pressure at idle as well. As soon as you touch the throttle it goes away.

Ok so if that's the case what would remedy the problem..? Why aren't all the ebm doing it? Why did his stop after the turbo was replaced? Not trying to give you a hard time but if replacing the turbo isn't the answer what is?

BGolden · Apr 18, 2015

If it was a turbo issue the smoke would get worse as rpms rise. Because oil pressure rises and would compound the oil leaking past the seals in the turbo. We do not have this issue.

Instead there is a positive crank case pressure at idle and it is not allowing the oil to drain into the pan as the pressure is greater than the gravity feed. Therefore you have oil backing up in the turbo and has no where to go, so it seeps past the seals.

We have seen smoking only at idle and no rpms which is not a turbo issue but a positive crank cad at idle. The smoke goes away at 1200 rpms when there is a draw on the crank case.

You can replace turbos but its not the cause. Its just throwing parts at it in attempt to solve it.

boosted_orange · Apr 18, 2015

Still didn't answer the question of why aren't they all doing this stock or modified..? So if it's a PCV issue wouldn't it do it from the beginning?

boosted_orange · Apr 18, 2015

Ok with it being a drain issue would it be safe to say that maybe a casting issue for the turbo causing a slow drain? As I mentioned not all the cars doing it & once the turbo is replaced the oil seeping is gone. I'm not trying to just throw parts but no one has really come up with any fix just speculation on what may be causing the issue

Frogger · Apr 18, 2015

BGolden said:
If it was a turbo issue the smoke would get worse as rpms rise. Because oil pressure rises and would compound the oil leaking past the seals in the turbo. We do not have this issue.

Instead there is a positive crank case pressure at idle and it is not allowing the oil to drain into the pan as the pressure is greater than the gravity feed. Therefore you have oil backing up in the turbo and has no where to go, so it seeps past the seals.

We have seen smoking only at idle and no rpms which is not a turbo issue but a positive crank cad at idle. The smoke goes away at 1200 rpms when there is a draw on the crank case.

You can replace turbos but its not the cause. Its just throwing parts at it in attempt to solve it.

What you say makes sense but have you determined how to fix the problem?

Blue smoke out of exhaust

OlphinSRT

New Member

ahduckit

Big timin in a small town

Fast64ranchero

Well-Known Member

MagnaFlow

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Frogger

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boosted_orange

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Ecobeast305

Well-Known Member

boosted_orange

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Ecobeast305

Well-Known Member

BGolden

Well-Known Member

boosted_orange

Well-Known Member

BGolden

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boosted_orange

Well-Known Member

boosted_orange

Well-Known Member

Frogger

Well-Known Member

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