My girlfriend has a 2000 jeep TJ. Last weekend she was driving 75mph on the highway and her jeep just shut off. It would start however when it idled forward or you pressed the gas it shut off again. Got it towed to my house and when we tried it there ran just fine. It has been doing fine until yesterday when my girlfriend was driving it and it did the same thing all over again. We had it towed to a dealership and they spent 2 days looking at it. They said they have tried everything but as far as they can tell its "flawless" and there is no problems at all with it. Besides the fact it keeps shutting off of course. Does ANYONE have any ideas? Thanks so much guys.