This happened to me once last summer on I-20 at speed and it spooked the hell out of me but it started right back up again on the side of the road. I was just outside of Atlanta on the way home and it made it back just fine. I honestly had forgotten about it - until yesterday and it returned with a vengeance. On a 70 mile drive with a local car club, the engine would just shut itself off. It was like you turned the key off. The electrical system was still working. The radio would still be on, the lights would work and the dash lights would operate , but the engine would just die and not start for a few seconds. I could get it to restart by pushing the clutch pedal in and letting it back out while I was on the move a few times. I was even able to restart it on the fly with the clutch in using the key again. It would restart and I just let the clutch back out and keep driving. A few other times I had to sit on the side of the road for no more than 10 seconds and it would start and run again. A few things: When it was running, it ran great. No misses, no power loss. Smooth and perfect. When it shut down, it would just die. No backfire, now preliminary power loss, no hiccough whatsoever, just instantly off. Period. Absolutely no warning. Just off. Dash light all on, radio playing but engine off. When it started again, it would start instantly and run perfectly. Just like it is supposed to as if there was no problem at all and it would pull away with full power again. Absolutely no hesitation to start and no rough or stumbling idle. One thing I did notice and I don't know if this means anything but when the engine died, the tach would still be matching the engine revs (I would still be in gear at about 50 or 60 mph when it did it) In other words when the engine shut down the tach would still be where it was running and as the car slowed and it would gradually go down as the car slowed. I would have expected to see the tach fall to zero when the engine shut off but it didn't. It seemed to like being above 4500 rpm. I was able to get where we were going by keeping the revs up high like that. We have a tow truck follow us on our drives so I got it back home that way. Of course it started fine and I drove it up on the flatbed. As I was sitting there on the back of the truck idling, it died again. After the car was dropped off at my house, it started fine and I drove it back off the truck, down the driveway and in the garage without a problem. Any ideas? Since the engine runs great (when it is running) I am relatively comfortable this isn't a "serious" problem. I am going to get it up to Ron in Atlanta but I wanted some Fchat input in the meantime.