Hi,
I'm helping a friend figure out why her 1993 Chevy s-10 pick up (4 cylinder) wont start when its been driven and parked for an hour or four. It starts fine when its cold, such as sitting outside all night, down to 15 degrees F. When it's hot it will restart as well. But let it sit for 1-4 hours and it will crank merrily but not start. Does anyone have some ideas? Thanks in advance for your help.