Why would a Geo Tracker stall then start back up?

Answer 1

I have a 1997 Geo prizm. It stalled on me going to work the other day and would start back up. It sat
for about 2.5 hours before my boyfriend got there to look at it and it started right up for him. After it
got warm again it wouldn't turn on for him. What could be wrong with my car? If it's being started from
parked for a little bit then it starts right up.