My car has been starting fine and my battery is good. However, yesterday after about 4 hours of hard rain, the car was difficult to start. (Also, I should mention that my car was parked on a fairly substantial slope in the driveway--the front being higher than the back.) When I turned on the key, the engine turned over many times but would not start. Finally, the battery seemed to weaken a bit, and I had my neighbor jump start me, and after a good bit of time, the car started. I drove it about 3 miles, and when I stopped, the engine got rough and stalled. Also, during the 3 mile drive when I attempted to accelerate, the car sort of gulped. After I barely restarted the car, I was very careful to drive it continuously at about 35 mph, and I avoided most stops for about four miles when I got stuck at a train crossing for about 6 minutes. There was a minor bit of roughness in the engine while waiting, but it did not stall. I drove another 3 miles to my destination without problems and parked. Three hours later, I drove 10 miles home with absolutely no problems in starting the car or driving.
Can someone tell me what happened and how to fix it?
Thanks,
JD