I have a 1998 Ford Taurus SE with 68000 miles that only in the summer when it is hot out will drive ok for about a half hour then will either quite at a stop light or you can turn it off for a short time & then try starting it but it will not start; acts & sounds like it is starving for gas. I just replace the IAC valve thought that fixed it until I drove it for a short time , stoped & turned dff the motor to go into the stor for about 5 min came out & would not start; had to wair 20-30 mins to cool down before it would start.