Might be related, maybe not, but at my work we had a 2003 Taurus, been had been reliable up to a point it in one day, started dying and firing right back up. Would quit then maybe start, maybe not. Finally gave out on me 1.5 hours from work. Got it towed in and it was a wire broken or shorted. Never actually saw the bill or talked to anyone at the dealer to know what or where.

Just sounded so much like my ordeal with the Taurus. Thought I'd throw it out there for ya.