well i have a 2008 4500 6.7 , has air dog , pmt ,no egr , waste gate , and studs
just did the head gasket last week ... had a problem getting it to start had to help it with some brake clean smoke bad when it started then was fine .

drove about 1500mi and the truck got hot and started smoking black and then white smoke and is kalcking and the oil pressure is droping off after you start it hot or cold ,,,, the white smoke doesn't smell like coolant ..


any ideas on what is going on here ?