I had this exact problem with an S-10 a few years back. I drove to school, turned it off. Half way through class turned it on for some heat on a break(smoke break in -1 weather) and it started great. Went in for another hour. Got back out. Turned the key and nothing. Lights were on inside, head lights were on, no diming or anything. After checking cables, fuses, and scrubing the ends of all the fuses, and relays. Nothing changed... i walked to a gas station to use the phone. Walked back and on the first try. Fired right up. Never had that problem again... of course i changed out EVERY fuse//relay that had anything to do with starting, running or operating anything remote to the vehicle. Nothing like your vehicle breaking outside of Brookdale Mall at 10 P.M. and growing up in the burbs to scare you. Long way from home, unfamilure neighboor hood, and a murder 4 blocks from you 2 days before.
