ok this is the problem...89 1500 4x4 no power to fuel pump. Checked all fuses under dash and also check the fuel pump fuse on the fire wall. I replaced the fuel pump and the fuel pump relay still no pwer at pump and no power at fuel pump fuse. If i run 12 volts to fuel pump fuse i can hear the fuel pump running. any ideas as to what can be wrong or what else i can check or do?