Re: 96 Ranger 2.3 L no fuel pressure. PLEASE HELP
If I was guessing, I would say the Fuel Pump. Probably not the filter. Running low on fuel consistently is hard on fuel pumps, any history of that? Do you have a check Eng Light on? If you do not have a CEL at all it could be an indication that you have a bigger problem, but check Inertia Switch FIRST for sure. The Inertia Switch on my 98 and some other Rangers is near the RH Kick Panel, has a Red (probably red) reset switch. That is an easy check.
To replace Fuel Pump yopu either have to drop the tank or lift up the bed. Unless you are in heavy Rust Country the bed is easier. Take out all the bolts except the 2 back ones, loosen them 9real loose) and raise it like a dump bed just enough to get at the top of the tank. You will need a special Fuel Pump Wrench (available cheap at Parts Stores) and some Quick Disconnect tools for the Fuel Lines, if it is like my 98. Make sure you take everything loose befor raising the bed, like filler hose for the gas tank, the ground straps to the bed, etc. It is possible to change the FP in a couple hours if you can raise the bed. If you want to force the bed bolts out, if they are rusty, you will probably have to buy the "special nuts" from Ford; still may be easier than dropping the tank.
Have you checked for power back at the Fuel Pump? The power wires to the FP are Black and Pink/Black (could be purple/black. I am half color blind). Should be 12 V between these 2 wires. Check with a meter, not a test light if at all possible. Good Luck.