i have same prob !!!

 

Are either of you running fuel additives?

 

I think it's just nature of the beast...mine also does it. Probably a combination of steam and the cold air outside that makes you think your truck is smoking. Heck most construction equipment will smoke all day long when it's really cold outside.

 

Mine does the same thing. I can't remember if it did it more after the EGR block plate or not.
No problems.:rockin

 

Cold weather does it.....I think it has something to do with the Pilot injection then the ECT is low.

 

It has to do with dried out seals in your fuel system allowing weeping of fuel and the "BLUE" smoke is unburned fuel escaping through the exhaust. If you run a quality additive that does NOT contain alcohol you should see an improvement. Anyone that wants more info or verification about how the additives work can read the article about Brad Walthour of Sunbury, Ohio and how the additives from AMSOIL almost completely solved this same type of problem in his Dodge Dually. I use both the Diesel Concentrate, AND the Cetane Boost and my trucks NEVER smoke unless at WOT with the tuner turned up, and even then the smoke is a black haze, not blue or white.

the reason they do it more in cold weather is because like stated above, the cold temps cause the liquid molecules to freeze into crystals in the air and you can see them, kind of like how your breath will do the same thing.

white smoke = condensation burn off for the most part.

Blue Smoke = weeping injector seals, and or piston rings not sealing properly causing oil to leak past them into the combustion chamber so that you are burning your oil...

 

I use addative almost everytime in summer and winter time everytank cuz it gets like i said 40 below up here and don't want to get gelled up. I check the oil all the time on it and it stays the same level.

 

Both of my trucks blow blue smoke just like you said

 

clears up once reaches operating temp? Its the ECM controlling fuel mixture until truck warms up.

 

I have only used my high idle a few times when it was new. 5,000 to 20,000 mile. It did the same thing. Since where I live it doesn't really get that cold I just don't use it.

rl

 

Mine makes one small puff from a cold start. I don't know what that means either. Any ideas? No high idle involved.

 

mine has a haze of blue also when warming up at high idle, i have neen running amsoil additive for over a year and there has been no change in the smoke im not concerned truck runs great smoke clears once i start driving sounds like this is normal

 

mine does the same thing when it is cold