Guys is it normal to have white smoke coming out of the tailpipe in the morning? It's got to be mid 50's-60's when I start it up. I should mention that it might sit for 4-5 days before I start it. The smoke goes away after the temp comes up.

Any thoughts will be appreciated.

 

Mine has done this pretty regular on colder days when starting with a cold block. Never paid it much mind.

I do have the deletes done and it would surge slightly, usually three times and puff out a little white smoke. Then it goes to actin right and runs normal. I always chalked it up to the quirky egr system on the 6.7.

One of these days Im gonna break down and do the entire egr and cooler deletes, maybe that will fix it.

 

Make sure that you are up to date with the ECM flash updates. I believe the current most up to date for the 07 is BA. There was an update quite awhile back that addressed an issue similar to one you are experiencing... one which I experienced as well and the flash update fixed it.