Hello all. My 6.0 powerstroke had been running funny and edge cs was telling me there was a fuel delivery problem changed filters and FPR but not luck. Took her to the the shop but they said they couldnt get the truck to surge like i was feeling. Took it for a ride got on the highway got up to speed and still surges then dies! Start again and head towards shop starts surrgeing very bad huge cloud of white smoke truck dies and wont start. There is anti freeze in oil... Truck gives one click and that all she will do. Hydrolocked? Think EGR blew. What else could have broke when EGR went? Thanks for any replies. O and of coure planned on deleting egr when taxes came back