White smoke from exhaust, no loss of coolant

[Leopold]

I have posted in the engine forum with no luck. I have white smoke coming out the exhaust with no loss of coolant and no apparent loss of oil. I had the truck diagnosed at the dealership and they said everything looked good but that it could be the egr valve. I replaced it with no luck. I spoke to the mechanic and he said it was not the injectors or the head gasket.

I am looking at the turbo seal this weekend and would like to know what to do next if that is ok.

Thanks!!