The fuel filter is a piece of cake to change. I replaced mine about a month ago. It was $10 for the filter and about 1/2 hour to change out. It is an inline filter located at the rear on the drivers side, just after the fuel tank. There is a metal shield you need to remove to get at it. If your YJ is of the fuel injected variety (like mine), the only thing you need to make sure of is to release the fuel pressure by taking off your gas cap, unhooking your battery, and releasing the pressure from the test port valve located on the fuel line rail in the engine compartment. Don't know about the fuel pump. If you have a Haynes manual the fuel filter change is described there, which is what I used. Good luck.