for a buddy/ white smoke tint of blue
 

Hello all, my friend owns a 2006 dodge 2500 5.9 and yesterday after work while he was pulling out of the parking lot I heard a weird noise kind of like a clank or a loud tick. Anyway so i followed him kind of courious on if it would blow out white smoke which it did with a tint of blue not sure what is going on all the temps he said where fine no loss of power. Any help would be great