Was driving on the interstate the other day with the cruise control on when it seemed like the car started losing power. I pulled it over to the side of the interstate and it died. I was able to crank it, but it wouldn't catch and start. Had the battery replaced as the old one was about 5 years old. Car started right up, however died again after about 5 minutes. Now I can just get it to crank, but it won't catch. Occasionally it will seem to start for about 1/2 a second and die again. When I turn the key to the on position I can hear the fuel pump being primed. Any ideas?