looks like blow by but tech says its steam

[pingpong1984]

so recently my truck went down i got it back to the dealership in nc after taking it to different shops along i 20 and i 95 for high crankcase pressure and blow by problems at the dealership they said that the egr cooler was bad and leaking coolant into the oil (i never saw any milky subtance on oil stick) any way they changed it out charged me 7k and gave me the truck back now im still getting white smoke coming from the oil fill cap when open and check engine/stop engine lights. took it back yesterday they told me it was steam that has to burn off from inside the head and to change the cc filter a couple times and it should clear up. has any one had this problem before if what did you do to fix it.... any info is greatly appreciated
sn: running out of money