This morning I get in my car and drive about 2 miles to work. About 3 hours later I get in my car to leave for a Dr. appt. and my car won't stay running. It will start but then just cuts off. I can keep it running if I hold the gas pedal down but as soon as I take my foot off it dies. After trying to start it and keep it running about 10 times, I finally just put it in first and take off. I drove about 25 yards and stop and everything is fine. Anyone know what the problem could be? Thanks for any help.