Need a little help with smoke

[powerstroke7.3]

Truck runs ok, doesn't seem to be lacking any power, but the smoke is a light grayish color, sometimes even seems to be maybe a tad whitish. What should I start looking at?

 

[buzzin1/2dozen]

Got a temp gun? Check oil in your intake tubing first and easiest.. Check turbo shaft play. Not sayin it's a turbo for sure, just an easy check.

 

[phale]

check coolant pressure, water can cause gray/white smoke.

 

[JD4440]

You have any way to check balance rates on the injectors ? I agree it could be coolant, check for a hard upper hose/pressurized tank in the mornings