Car stalled when pulling away from light.

No signs of any problems leading up to it. I take very good care of this car. Car was warmed up from making many stops. It had only been 5 minutes of running when it happend...it was already warmed up with the other trips. It was about 80 degrees around 3pm. I was on a straight road. It's a 2003 Kia Sorrento V6 standard engine. All maintenance has been performed and nothing has been done to the car for the past 6 months. No ordors, no sounds or vibrations. It was refuled that morning with regular gas as recommened by the Kia. Oil and filter changes ever 7,500 miles. I do all my own work as I know cars well from my drag racing days. Any help would be appreciated and no check engine light. I found the problem. It was the idle control valve that failed. Thanks, John