Ford Repair: windshield fluid dispense, washer motor, rear window

Question
2000 Expedition. No fluid would dispense on my front windshield but did on the rear. I replaced the fluid tank but same issue. I then went under the hood and switched some of the relays(?). Now, when I push to dispense fluid in the rear ... I get fluid dispensing on the front windshield, but now can't get fluid on the rear window. Any thoughts on where the problem might be? Thanks, Brian

Answer
the washer motor for rear may be bad-switching relays wouldn't switch which window got fluid it only completes a circuit-also could have a plugged hose-stand by fender or washer jug have some one push button for rear washer and see if you hear motor working if you do then probably hose or nozzle plugged or broke if not probably bad washer motor.