Well, I took the car to another Ford dealer....it started fine and drove there ok. They kept it for a week, driving it about every day, checked all the wires for rodent chewing, etc., ran computer diagnostics on everything, and the only thing they could find was a loose negative battery cable. The work was done by a mechanic I trust, and he said if they don't see the malfunction, they can't do anything. He tightened the cables and we picked up he car. We've had it for about three weeks now, driving it every day in rain & shine, and it runs fine....haven't had any problems of this nature. Only problem we've had with the car is that sometimes the rear lights won't turn off when we stop the car--we had that problem long before the other one...restarting the car seems to stop it. Just in case--we've renewed our 100 mile AAA towing subscription!