Changed out my water pump today. Got all the way done went to start her up and she starts out just fine. Then all of a sudden she stops as if she is out of fuel. I check the guage its on E but that normally means there is 2 gallons left (I've measured it!). I pulled the fuel filter, it was a little dirty changed it out nothing. I pulled the fuel pump and took it too the bench. I could siphon fuel from a cup and spit it across the garage with the it. Took some muscle to get the arm to move but it felt strong and looked like it was doing its job. I reinstalled the pump and put all the incoming lines back on and hooked up the output but set it on the driveway. I expect to see it shooting across the driveway but it didn't. Barely even a dripple. What the heck could have gone wrong? I would appreciate any suggestions. I am very concerned its internal but I thought the pump was driven by the cam. While priming it it runs for a second or two. I certainly wouldn't get that if I broke a timing belt would I? Beside how could I break a timing chain by removing and replacing the water pump. None of this makes sense and I am frustrated!!! HELP!!