How do you change a fuel filter on a 93 mercury villager?

To change the fuel filter on a 1993 Mercury Villager, first ensure the vehicle is parked on a flat surface and the engine is cool. Disconnect the negative battery terminal, then locate the fuel filter, which is typically along the fuel line under the vehicle. Use a wrench to loosen the fittings on both ends of the filter and remove it, then install the new filter in the same orientation (check for an arrow indicating fuel flow). Reconnect the fittings, reattach the battery terminal, and start the engine to check for leaks.