in the tank.
1994 is 55 gals
top center of engine under/behind air filter housing
On a 1995 Ford Explorer : The fuel filter is underneath the vehicle , below the drivers door , mounted on the frame rail
Try under drivers side on the chasis.
On my 1989 E350 motorhome, I had a weak fuel pump near the fuel filter. I replaced that and the problem went away. The pump in the tank was fine.
likely on the frame rail below or just behind drivers seat
Look under vehicle - follow the fuel line
might be a clogged fuel filter or some kind of leak in your fuel lines allowing air in the system.
your waste gate stuck open or closed , clogged fuel filter, dirty air cleaner dirty injectors
year? engine? 1995 5.9 v8
Remove the engine cover it