I went thru a few pumps this short summer. I was using the Airtex 4149 one. One gave out completely another one would not return the pump arm back out fully and another would pump but had almost no pressure behind it. The one with little pressure could not even exert its self if you just rest your finger over the out port. It would pass air if you took you finger off. If i may recommend switching to a carter pump as i have not found a single person have issues with one as of yet.
