1993 Ford Probe, 4 cyl 2.0L, 5sp manual, 127,717 as of getting gas this morning.
Saturday evening I went from Columbus, OH to Lafayette, IN. Average ambient temperature is ~20*F. The car started quickly and without problems, and proceeded to idle smoothly as usual. Nothing seemed unusual in the drive (girlfriend driving to learn stick, I'm the only passenger).
Around 3 hours in we stopped at a gas station near the freeway to fill up as the tank was ~2 gallons from empty (15.5 gas tank, added 13.5) After filling up the car wouldn't start. It turned over ok, the lights were not dim, it just didn't start.
After two iterations of this I traded places and got in the driver's seat, same thing. If I held the gas pedal down just a bit the car started and ran with no problems, even if I had it at idle speed (900 rpm). However, as soon as I released the accelerator it would die. No stumbling, coughing, or trying at all, it just died as if I had turned off the key. After doing that again (start, die) I restarted the car (holding the accelerator down slightly) and proceeded to get on to the freeway operating both the brake and clutch with my left foot, and maintaining some pressure on the accelerator with my right. After ~ 1 minute on the freeway I depressed the clutch, released the gas pedal, and the car idled smoothly as if nothing was ever wrong. The next morning (Sunday) I tried to start it, and it started and idled without any problems.
Monday I drove to work(65 miles each way) and back, no problems starting, idling, or running.
Tuesday on the way home I made 1 stop ~20 miles in and then drove the rest of the way home, no problems starting, idling. etc., warm or cold starts.
This morning (Wednesday), no problems starting, got gas on the way in to work (40 miles in), and had the same problem. Once more a slight depression of the accelerator pedal got me going. The car did die when I stopped at the freeway entrance and forgot to hold down the gas pedal a bit, but started up just fine when I did. As before, a test 60 seconds down the road showed no problems. When I got to work I shut my car off, waited 60 seconds, and restarted it with no problems, and no need to hold down the accelerator.
At this point I've concluded that it has something to do with putting fuel in the tank, and I have 4 theories:
1) My car doesn't like gas stations, and is trying to condition me not to go to them.
2) My car really likes gas stations, and wants to stay once it gets there.
3) Water in the tank.
4) Clogged fuel filter.
1 and 2 don't seem scientific enough for my engineering mind. 3 and 4 have some holes as well since it runs without problem with just a little pressure on the gas pedal.