Re: '93 Explorer shutting down
I'd replace the battery if you don't know how old it is. You should be able to have the alternator tested at Autozone. If the battery is replaced and the alternator is okay and you still have the problem, I'd try replacing the Idol Air Control valve(it's a cheap replacement part). Also it can't hurt to replace the fuel filter and pcv valve and add some fuel injection cleaner to the gas tank.