2000 Ford Explorer 2000 Ford EXPLORE SPORT 4WD WONT START

I WAS DOIN A TUNE-UP AND RAN INTO THE PROBLEM OF NOT REACHING THE LAST 2 SPARK PLUGS ON THE PASS-SIDE. SO I FIGURED I COULD JACK IT UP AND REMOVE THE TIRE AND GET TO THE LAST 2 PLUGS WITH WORKED. THE TRUCK STARTED FINE. LATER ON TRIED TO START IT AGAIN AND IT FAILED TO START. BATTERY IS FULLY CHARGED AND USED ANOTHER CAR FOR EXTRA POWER AND IT STILL WONT START. I CHANGED ALL 6 PLUGS AND WIRES ALSO BRAND NEW AIR-FILTER. ENGINE CRANKS BUT WONT START.U CAN SMELL THE FUEL.I CHECKED THE EMERG FUEL SHUT=OFF AND I PUSHED IT DOWN AND ALSO PULLED IT UP AND NEITHER GOT IT STARTED.I CYCLED THE KEY TO THE ON AND OFF POSITION AND I CAN HEAR THE FULE PUMP RUNNING. I CHECKED THE FUEL PRESSURE RELEASE VALVE AND IT WAS A TINY SQIRYT OF FULE THAT CAM OUT. SO IM THINKING THERE IS A BLOCKAGE BETWEEN THE FUEL PUMP AND THE FUEL-RAILS SOME WHERE. MAYBE I SHOULD TRY AND CHANGE THE FUEL FILTER. PLEASE HELP !