2006 dodge ram 5.7 hemi 26K miles. I have a superchips tuner on 87 and i use 89 religously. The truck gets started about twice a week, and drove around 70-100 miles a week.

I've noticed that sometimes at startup i get a slight puff of white smoke. It doesn't smell sweet, nor does it smell strong like it's burned oil. It quickly goes away, and only seems to really do it after the truck has sit overnight. Saturday, i cleaned out the garage, started the truck, pulled the truck out...then started the truck and put it back in the garage. So it didn't run very long, but on Sunday when i started the truck the next morning, it puffed out a small cloud of white smoke.


I read where it could be the pcv valve. So i pulled it out yesterday. It had some oil on it, but i could shake it and it rattled. I also could blow or suck through it, so i decided what the hell...might as well just replace it. No autoparts stores carried it, so i didn't get to replace it

Anyone have any idea if this is common...obviously a pcv valve issue...or no issue at all?

 

Mine does this occasionally. It happens when I crank it cold just to move it, then the next morning or later that day it will puff a little white smoke on start up. I beleive that it is unburnt fuel that is getting burned off. Remember that when you just crank it to move it the computer is sending more gas than normal to the cylinders because the engine is cold. You are not giving it time to change the flow rate, so you end up with some extra gas in the cylinder that wasn't burnt.

 

White smoke, water; blue smoke, oil and black smoke gas. White smoke this time of the year is not unusual. Don't worry about it.

 

+1
Al.

 

No worries, my guess it is condensation from the pipes. Varying temperatures make a lot of water.