Hi, my wifes Explorer is failing to start. She ran several errands today with lots of starting and stopping. The truck is setting in the driveway and will not start. It cranks fine, once it sounded like it was trying to start but it didn't.
We had this happen about a week ago, the dealer said it needed a master reset or reprogrammed the processor they said. They did that and we thought all was well, but it has done it again.

Any ideas of the problem and what I can do to fix it? The dealer said it will probably start in the morning, if it does we are to bring it in and get a loaner and they will work on it Monday.

Thanks for any help

Brian