Gas Recirculation Valve (egr Valve) problems of the 2002 Ford Taurus

I was driving and the car just went dead in the middle of the road. Tried starting and smelled fuel. Car towed. Fuel line had come loose and fell off. Then a week later, car stalled on freeway - I was able to coast off. Car started again after 1 1/2 hours. Taken to Ford service dept. I had to slip into neutral and give gas when slowing down or breaking in tandem with using breaks. Dealership said there were no problems. Same week, car stalls on freeway again. I am stopped in rush hour traffic trying to start car. It starts - I make it to work, car stalls in parking lot. Take it again to dealership - they say no problem. 2 weeks later, car stalls on freeway. I had to drive with no air conditioning in order to keep the car from stalling. Again to dealership (3rd time in 3 weeks) and again they say there is no problem. They also tell me air conditioning pulls a lot of gas - ? what - you shouldn't be able to drive your car with air conditioning on in the 100 plus degree weather in az? I have been lucky up to now, but am afraid of having an accident on the freeway if it stalls again. I would like to hear back from someone at Ford motor company - I have already paid two different dealerships diagnostic fees and both say there is no problem. I think there is.

Auto: Ford Taurus 2002 with the ("ffe") "fuel flex engine" installed problem: car experiences "classic miss under load" or "hesitation" at constant speed with a low throttle angle on the gas petal between 20-50 mph while in either "over drive or drive". Most pronounced in cruise control between 20-50 mph with a/c off. Repair effort: after (4) repair cycles within local dealer's shop, the last with Ford field engineering present, have identified the problem to be isolated to the "exhaust gas recycling valve". Since the "ffe" engine is design to work with both ethanol and standard gasoline, it is believed the opening and closing cycle of the egr valve is incorrect for use with standard gasoline. The fourth and final repair report states egr is the cause of the auto performance problem. The owner firmly believes this egr problem is also the cause of periodic motion felt within the car, which may cause feelings of "nausea" possibly due to "motion sickness" to the driver and any occupants in the car. Dealer mechanics and the service manager have been successful in repeating the performance problem during test drives and can stop problem by disconnecting of portion of erg system. Ford field engineering final decision on repair: "no repair necessary, this effect is normal for this type of engine". Auto owner is now using "dispute settlement board" within Ford motor company to resolve this problem. Owner believes this type of problem falls under "defective product" statute.

The car was operating under sunny dry conditions. Temperature was around 60 degrees. The engine stopped running, causing shutdown of all power related devices including steering and brakes. The Taurus seems to be more difficult than most cars to steer without powered assistance. I was lucky enough to be able to coast to an area where I could safely get off the road. Under different conditions, this failure could have caused a serious accident.