Not uncommon for a main pump to suffer from non-operating prepump. Kind of depends on the original conditon of the main pump and the time duration of the failed prepump. If in doubt of the main pump's out put, do a volume and / or pressure test. Main pump uses fuel for cooling, so a hot pump could mean lack of supply pressure, or just a tired pump. A simple amp check would tell you if the pump is drawing more than the normal amps to operate. This could indicate a tired pump and contribute the hot condition of the pump.

Myself...high milelage can contribute to a worn out pump. You can do the volume and amp check yourself. A shop can do the pressure check if you don't have the test kit. BUT, compare all the price. A pressure check may cost you about one third to one half of a new pump. So, if you like the car but a pump from FCP for about $125 and put it in yourself. You may need a filter also; $12.