Good morning all! I have a 2018 Expedition Max with the 3.5L ecoboost turbo with only about 41,500 miles. Saturday when we went to turn it on the engine wouldnt turn over and quit. the ingition wouldn't shut for several minutes though. Smoke started coming out from the grill and wheel wells in front and through the vents. The doors were unlocked at this time. Front doors stayed unlocked but the rear doors locked and wouldn't open. This made it so no one in the back seat could get out of the car. MAJOR PROBLEM! half hour later the battery was dead. I jumped the battery and it started right away. A little sluggish on the start up but started. Engine is making a flapping noise (best way to describe it) noise. all the belts appear good. Nothing noticeable. drove it to the dealer and they said they've never heard of anything like this on this engine. They thought it was the battery that died, but that wouldn't cause all these other issues to happen. They are looking into it today they said. I am thinking the alternator burnt up, but what would cause the rear doors only to lock and not release?