I have a 1998 Explorer and this is how I did it. Drain your washer reservoir with a pump or siphon. detach the wiring connector from the pump. By the way the pump is on the lower left hand side of the reservoir if your looking at it from the right side of the vehicle. There's no need to remove the reservoir. detach the two hoses from each side of the pump. Wiggle the pump loose from the reservoir. If you have to, use a screwdriver to help pry it from the reservoir but be gentle. you can leave in the rubber grommett/filter or whatever it's called. To make installing the new pump easier I put a very small amount of silicone spray around the pat of the pump which slides into the grommet. reattach the two hoses and then the electrical connection. You now have a new washer pump.
It is the same reservoir as the front window washer.
The rear window washer is fed from the front window washer tank in the engine compartment
On a 2001 Ford Explorer : The washer fluid for the rear liftgate window is supplied by the same reservoir as the windshield ( that is located in the engine compartment )
To replace the Ford Explorer rear window hinge, you have to buy a similar window hinge. Use a screwdriver to open the hinge and replace the hinge but fitting it in the window.
According to the 2010 Ford Explorer Owner Guide the washer fluid for the liftgate is supplied by the same reservoir as the windshield
The pump is located either inside or on the outside of the washer reservoir.
The washer fluid for the liftgate is supplied by the reservoir for the windshield according to the 2000 Ford Explorer Owner Guide
The washer fluid for the rear liftgate is supplied by the same reservoir as your windshield ( located in the engine compartment ) on a 1999 Ford Explorer
According to the owner's manual , a 2004 Ford Explorer's liftgate washer fluid is supplied by the reservoir tank for the front windshield - Helpfull
Starting with the ( 1997 ) model year of the Ford Explorer , the washer fluid for the rear liftgate window is also supplied by the reservoir in your engine compartment ( that is used for the front windshield )
should be the same reservoir as the front windshield wipers
On a 1998 Ford Explorer , there is a 7.5 amp fuse in location # 12 for the washer pump relay and power window relay , according to the owner's manual (Helpfull)