CM2250 coolant in oil after being jacked up high on front tires

[Kingcali111]

I apologize for the late reply here, was stuck in family problems so wasn't really able to take a look at the truck, so my neighbor diagnosed the leaking oil cooler, so we replaced it yesterday, now the thing is how can i clean the milky oil thats inside the engine? I am using the old engine oil to flush it but i noticed the oil fill cap is blowing white smoke, its not blowby cuz it doesn't blows my cap when i leave the cap on, its just white smoke coming nd coming, any ideas what it could be, i am assuming engine is burning the moisture inside that is left from milky solution. No coolant loss as of yet, any ideas whats the white smoke and how can i better clean the engine from inside, thanks much to all fellow members