Power Steering Failure - Unusual

Think carefully....did the power steering cut out first....or did the engine die??? When the engine dies the power steering will stop working. So which came first? Since the power steering seems fine once the engine is restarted....i'm guessing the steering is fine and rather you have some problem with the engine dying at low speeds. I have seen this problem in my town and country...it does it once or twice a week. I believe i need a new fuel pump...but that thing is expensive and also pretty high labor involved in putting it in. So, I am living with it for those reasons and also because I'm not 100% sure that is the exact problem.