Cold motor, Blue/White smoke with a blip

[JasonCzerak]

First start up after 8+ hours of not running, I can blib the throttle and get a good dose of smoke, white-ish with a blue tint. I have yet to be at the tail pipe and see up close. A few times if the wind is right it smells like burning oil. Once the motor warms up, no smoke, no burnt oil smell, nothing, perfectly fine.



What are my chances it's anything else other then a turbo seal? I I check the boost tubes recently, fearing a possible runaway condition with leaking oil in a turbo. The intake side is clean as a babies behind, no dirt, not oil, no nothing. I'm hoping this is just an exhaust side leak.



Could I have a leaky valve seat? anything else? there is a rought idle at times, This seems like an injector being crabby. exhaust note is the same, motor rattles haven't changed.



I did sell back 80 hours of PTO, might just buy that turbo with it 64 series turbo of some sort.

 

[rbattelle]

Any chance this is relevant?

Ryan

 

[JasonCzerak]

No, I have an 04. 5. I'll double check tho I'm perty sure it was near the end of hte 04. 5 build run.



I checked the oil today, took 1/2 quart to get to the bottom quarter of the safe zone. She's burning oil for sure.



How do I confirm it is in fact the turbo with out pulling the turbo off?

 

[Dieseldemon]

Check your injectors I just had one that had been replaced by dodge and they never seated the new inj. compression leaking by the seal on the tip of the inj.

 

[JasonCzerak]

Check your injectors I just had one that had been replaced by dodge and they never seated the new inj. compression leaking by the seal on the tip of the inj.

I'll be doing valve lash this weekend and I'll take a close look at the injectors.

 

[BrianJ]

Sounds similar to what I experienced with my '04. 5...



I would get 40-60 seconds of white smoke on cold starts when I had a bad injector replaced at 10k on the odo. It was leaking a small amount of fuel into the cylider, not enough to leak down and show on oil analysis.

 

[mberry]

Sounds like mine from day 1.

 

[SDunkle600]

Mine has done that since new also. I took it to the dealer when I frist noticed it and of course they couldn't find anything. I have noticed that if I run it hard with a load on it, it doesn't smoke the next few times when I start it up. I believe mine has something to do with carbon build-up on the injector tips. I keep tabs on the oil and have never seen an increase (from leaky fuel injectors) or much of a decrease. If you are loosing oil though I would have it looked at.

 

[JasonCzerak]

See, the difference here is that I'm actually LOSING oil. I have filled 1/2 quart in the last 5000 miles. And I can smell burnt oil. Just like a gasser with bad valve seats or something. It smells just like that.



I'm sure my injectors are not in perfect shape! But I'm sure they are not the cause of this "blue/white" smoke.



If I idle for 20 minutes, I can get a slight taint of burning oil, but I can't see anything.