I have a 95 Cougar and these symptoms sound like the problem I had last summer. My car would just die out driving down the road or at stop lights for no apparent reason. After nickel and diming my way through a bunch of "suggestions", I solved my problem. It was the Mass Air Flow Sensor, the first thing and last thing that I tried. The MAF Sensor that I picked up was used from the junk yard, and of course I just happened to pick up a bad one. Needless to say, after trying every thing in the book, I went back to that sensor and bought a new one. Solved my problem instantly! I never knew that a MAF controlled so many things, even the tranny. Good luck!