Quiting, Coking Issues

I have a 2002 Ford Taurus, 3L V6 with 101206 miles. I have had in two different garages for repair. My family and I were on our way home when the car would loose power and shut off. Before it would shut off, the car would start to choke. When I would shut the car off and wait about five minutes before starting it up again. It would start back up but would only make it about quarter of a mile and do the same thing over again. So after two hours, I finally got it flat bedded to the first garage. The first garage told me that it was out of oil (which it was not) so they did a whole oil change, along with changing the oil filter and fuel filter. Once we got the car back and started back home again, the same problems started all over again. This time I took it nice and slow, stopping every two miles and waiting. I took it to the second garage and they replaced the fuel pump. This time the car lasted four days before acting up the same way it did. Every time they would hook it up to the diagnostic machine and would not receive any error codes. The techs do not believe there is an issue. I have just picked up my car for the third time. I have only had this car for two years and still have payments, so the option of trading it in right now is out of the question.
Would you please let me know what to expect or how I can get my car repaired properly?