Took my car to my mechanic said that coolant was draining into my 2.0 ecoboost engine in cylinder 4 causing misfire, white smoke to come out of my pipes, sweet antifreeze smell in the cabin. Have to constantly dump coolant into the car so that it dsn’t over heat.when i start the car in the morning it acts as if the car is going to die if I don’t hit the gas. Contacted ford, they said it was my problem. I bought the car a year ago. It started at about 72000 miles.