Yes it was on the bottom of the fuel pump
There’s a screen on the fuel pump, but there is probably an in- line fuel filter too. My old PU had one on the truck frame underneath the drivers side.
Does your Jeep have an evaporative control system that captures the tank vapors, condenses them, and returns them to the tank? Sometimes a bit of crud can plug those lines, or a small check valve in the system can fail, giving the symptoms you describe. A vacuum lock in that system can cause the pump relay to kick. After a minute or two the pressures equalize and everything is hunky-dory until the next time. Don't forget to check the fuel cap.