I have a 1992 Ford Taurus, 3.0L, and I have had this same issue too...First was Aug of 2011, it was probably about 95 degrees outside, and the gas gauge was just a hair above the red square of empty...and it stalled...restarted long enough for me to get out of the middle of the road...It sat for about 20 minutes, and I had someone bring me 5ga of gas, and it started up, but wasn't running quite right...so I parked it for a couple hours, let it cool off, and it seemed to be fine. That weekend I replaced the original fuel filter with a brand new Motorcraft filter...the old one wasn't plugged, but it was pretty dirty
Well, earlier this month, on a 100+ degree day, it stalled again...This time it had between half and quarter tank of gas...so I let it sit for an hour, jumped back in it, and it fired up...so I put $15 worth of gas in it, and it seemed to run fine after that, and had lot's of power.
It did stall on me one other time, but I found that the coil wire at the coil was corroded, and the coil had a crack in it. So I replaced the coil, rotor, cap, wires and plugs, and it ran so much better (Figure the old parts were 19 years old....LOL)
I have noticed the fuel pump in this car has been quite loud, even when my mom owned the car before I got it...does anybody think I have the same fuel pump issue? On cooler day's, it run's just fine....