My cars idles low and engines hot and shaky?

[Shawn Z]

whats the problem with my honda civic 01? whenever i drive for long periods of time when my engine gets hot it starts to shake as the idle gets low and then shakes and shuts off. i went to autozone and said it sounded like a fuel problem? what does it have to sound like to be a fuel problem? could it be the radiator, water pump, throttle sensor,