White smoke means the coolant is in the combustion chamber...
I saw white smoke when I over revved the engine on the highway and the valve hit the piston and sent it through the side of the block... the connecting rod was bent like a pretzel... :BangHead:
That I believe, it white smoked big time this morning on start up. Didn’t even think about it. Well guess we’re gonna find out just how tough the legendary Cummins block is