I just bought an AirTex fuel pump for my truck, Nobody in colorado had the motorcraft pump, and I need my truck running badly, Does anyone know how good this pump is? And I am trying to find the fuel pump relay, and is there any way I can test the original fuel pump? I have no pressure at the rails, just a spurt of gas at times, but no solid psi. I just want to do this right the first time, and everyone on here know's what to do, better then some of the mechanics at the dealership!