2017 Fusion with 80k miles. never had an issue with this car ever. has always ran perfectly. My wife drove it to pick up a pizza. She parked the car, turned it off and locked it with key fob. When she got back into the car, it started perfectly fine. While she was in reverse backing up out of the parking spot, she said the engine made a strange sound (that's the best description I could get from her lol) and then died. It would not start after that. Once I arrived on scene, I tried to start it with no luck. It never made a single solitary sound when pressing the pushbutton. Not Start solenoid click, no fuel pump turning on, nothing. All the lights on the dash were go off like crazy, but I don't pay much attention to those when the car is not running. Radio, windows, and all other electronics worked fine. Could not rotate the shift rotary knob into neutral so we could move the car out of traffic, ended up having to use the Neutral bypass located in center console.
I initially suspected a bad alternator and drained battery as the culprit. Tried jumping it with my truck with no luck. Had the car towed to my home and let it sit for several days while I was working out of state. Came back to the battery being completely drained. I think my meter picked up 2 volts. One strange thing i noticed was when I applied a full 12 volts to the drained battery via another vehicle or using a battery charger, I head a noise coming from the engine bay near the front driver side of engine like something is running. Its not a fan motor or anything. this is without ever entering the car or turning the car to accessory mode via pushbutton. Two questions, Why did the car die while backing out of parking lot? Why did battery drain in just a few days of sitting after it was towed? What is the noise I hear when battery has sufficient voltage? and why wont the darn thing start? Also, OBD reader showed no active or history of fault codes.
