2004 ford ranger 3.0 wiring diag for fuel sys pump

Which wire are you grounding?
http://easyautodiagnostics.com/ford/4.9L-5.0L-5.8L/fuel-pump-relay-tests-3

Did you check the relay? Power goes from ignition switch to relay to pump. Where B+ stops is your problem.
Run a pair of jumper wire from battery to pump just to see if pump works. If it buzzes and runs its ok.
Then you definately know its something in the control circuit.

try the fuel pump rested button. its on the passenger side up by where a persons foot would sit. turn ignition on. press the button, ignition off, the fire it up. this could be it due to fords and their sensitive mercury sensors

you have to drop the gas tank because the fuel pump is in the tank.

Are you getting power to the inertia switch? I would check the fuse and relay for the fuel pump.

got 1987 ford f-150 no power to fuel pump, checked fuel cut off swith seems ok, new fp relay still nothe can I run hot wire to pump and if I can which ones the hot wire??

if the pump has been changed twice its probally not the pump. could be the fuel pressure regulator. the computer will still throw a fuel code but in order to really diagnose the problem they would have to test the fuel pressure.

did you replace the fuel filter as well

it's the fuel pump. make sure your fuel injectors are clean or else it will happen again

clean your injectors
they probably have dirt blocking them out