NHTSA Complaint #11697836 — 2018 FORD EXPEDITION

I was driving down the road at 45 MPH, I pushed the accelerator then my vehicle shifted out of drive to neutral, the RPM increased, the car speed decelerated, then the vehicle put itself back in gear severely downshifted so much that my car lost 20 MPH then the engine returned to normal after a violent shake and loud grinding noise. The car could have caused an accident had there been anyone behind me. Luckily there were no other cars around me. I had the vehicle towed to the dealer. They are unable to duplicate the issue I stated but did indicate a skip in cylinders when they hooked it up. I had the transmission overhauled at 53K when it was not shifting properly. I asked Ford to replace the transmission however they elected to overhaul it. From time to time the transmission would shift odd but nothing of over concern. The incident on Nov 3 was very unusual and safety of travel for me. The vehicle had done something similar earlier that morning but that time it was from a stop and no speed so not nearly as violent as the one later that evening. The vehicle is currently sitting at a dealer needing a transmission replaced, however the vehicle is 500 miles over the 75K ESP. Ford is refusing to discuss the problem.