My 1992 runs fine around town, but after I'm on the highway for about an hour, it will sputter and just stop, like it's not getting gas, especially on a slight incline like a freeway overpass. Various mechanics have changed the fuel filter, removed the gas tank and emptied it, thinking there was water in the gas following the Florida hurricanes, and suspected a fuel pump but it tests out OK. They can't get it to act up because they only drive it a few miles around town. I can't take it on highway trips at all now because I have pull over and stop so many times. It's weird that it always starts right up, but a few minutes or a few minles later it will do it again. Anyone else had this problem and solved it??