EGR valve causing smoke? - Ford Powerstroke Diesel Forum
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Old 11-12-2012, 06:30 PM
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EGR valve causing smoke?

I have asked a couple times about my truck having the grey smaoke on startup. I put in some archoil and haven't noticed much any difference. The smoke is the only thing happening as it acts just like stiction, goes away once the truck has warmed up, but has none of the stumbling or missing or lack of power or poor fuel economy(still 17mpg overall).

I pulled the injectors to check them and nothing was out of the ordinary, put them back with new orings and such. My only thought now, short of running a contribution test is the egr valve. I have a delete but am running the stock file(vxcf4), have no codes or wrench light. Even though the delete is there, could the valve itself be tied in to why the truck is smoking, I believe I have heard about it causing some odd problems before.

Icp is around 580 idleing, icpv is .5-1.0 depending on temp, ficmv is 54.50 solid in all ways of checking, haven't checked ipr yet but do have the new stc fitting and screen on the ipr, and the hpop still delivers 4000psi at wot and never drops, fuel psi is 64, drops to 61 at wot. Oh and the batteries are about 6mos old and voltage hangs around 13.5 unless the glow plugs are on then it's 11.2. These readings are per the dashboss.
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Old 11-13-2012, 04:41 AM
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Blockage from your ccv mod, must be free flowing.

Sent from my phone that somebody didn't help me get.
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Old 11-27-2012, 09:51 PM
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I let my buddy borrow my truck last night to see if he had any insight. The only thing he said was icp psi seemed high at idle when cold around 1300 or so psi with temps in the 40's. said it was around 580 at warm idle and that was normal. He said it may very well be glow plug issue as his cr does the same thing when cold as his grid heater is deleted but said it idles too good and has no shortage of power even cold. Didn't think it could be coolant as the exhaust just smells of diesel and there are no signs of puking. And doesn't think it could be an injector o ring,cup, or tip as those would constantly cause a problem. Another thought was the mild flash on the ficm might be causing something but it would be very odd. Said he checked the oil again and didn't see any signs of anything.
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Old 11-27-2012, 11:20 PM
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ICP pressure is going to be higher on cold starts as the oil is still cold and thick. When it warms up it will thin out and pressure will drop.
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