2000 taurus flex fuel stalling out.... need help!
I have a major problem with my car stalling out. It seems to happen when I'm driving a long distance with the air on. Acts like its getting no gas, starts to clunk and sput and then nothing. Let it sit for anywhere from 5 to 30 minutes and it starts again with no problem and continues for the rest of the trip. It has happened no matter how much fuel is in the tank, and it only occurs in the summer or when its hot outside. It has been doing it for the last 3 years and no one has figured out what is going on. It's now in the shop as I have 2 small children and I can't depend on the car anymore or run the AC without fear of breaking down and my mechanic is saying to replace the fuel pump which is going to cost me around 500 bucks with labor. But there is no guarantee that this is the fix. No one can find a connection with the AC and the stalling out though. At first I thought maybe it was a coincidence but I made the same trip 3 times in a week and the only time it stalled out was when I was running the AC. Of course it won't do it while my mechanic has it and he's driven it everywhere to see what is going on. Has anyone else had a problem with the AC being related, or another fix besides the fuel pump? I really don't want to spend this money just to have the problem keep recurring. Any help would be greatly appreciated. Thanks! Oh and by the way it does have check engine light when this happens and its been 2 different codes. Secondary fuel pump circuit malfunction, Fuel rail pressure regulator malfunction - this one has occurred the most, we removed that and gave it a thorough cleaning and it didn't fix the problem.