I'm having periodic hesitation and stalling issues that are tracing to fuel delivery. It looks like I've got an internal pump. Any direction/advise on how to get to the pump without making a mess?

 

unfortunatly there is no hatch in floor of aero and you have to drop a tank to rmove a sender unit. Replece small filter inside the tank and change filter on dr. side frame rale...

Of course you can make a hatch in floor to fast asccess to fuel sender.

 

I didn't have to completely drop the tank to get at the cap/plate on the tank. I was able to drop the outer half a few inches with a floor jack. But I did have to disconnect the lines, and that's where a few drops of fuel spilled.

 

I just replaced my 94 4.0L fuel pump last year. After get the parts (new assembly pump, in-line filter, a lot of clean rags), put the van on racks and jack up. Make sure you work in a vent and safe area and have the distinguisher at hands, don't make any spark or smoke. Here what I done:

1) Disconnect the neg. battery cable
2) Siphon the gas out as much as possible.
3) De-pressure the gas line
4) loosen the clam (at the filler pipe)
5) Remove the gas tank fire wall (5 screws)
6) Set the transmission jack to support the tank
7) Disconnect the connector just outside of the tank (to the front)
8) Remove the 2 inner bolts of the 2 tank traps
9) Remove the 2 tank traps
10) Drop the transmission jack down about 3", 4" or so and gently pull the tank down. It might stuck with the sticky insulation of the traps
11) Disconnect the pump electric supply connector which has 3 snaps to hook to the pump (I use a small flat screwdriver pry the bottom snaps GENTLY)
12) Disconnect the gas feed and return lines from the pump
13) Disconnect the 2 vents (locate at the rear-top of the tank)
14) Drop the tank down another 7" or so then disconnect the filler pipe from the metal neck (I had to twist the pipe back & forth) and pull it down with the tank. You better have a helper to hold the tank.
15) Clean around the pump surface real good, and then use big jaw pliers to open the pump cap. Mine is white plastic. Clean it thru.
Replace with the new one. DO NOT test it dry, the test will ruin the pump in that condition. Set the 2 arrow marks on the pump lid to match with the 2 marks on the tank then hand-tight the pump cap and use the pliers to tight it a half more turn. In my case I try to clean the inside of the tank but I couldn't find/see any dust. Put the tank back and use the 2 new plastic clams, which supply with the new unit, to secure the feed & return lines. Reconnect all by reverse above sequence then change the fuel filter, clean all the spill gas, fill your gas tank about 5 gallons or more if possible. Re-connect the battery negative cable. Turn the key on for a few seconds then turn off a few seconds; repeat it 6 times before fire up the car.
Hope it helps,
Fordboy49