How do you change the fuel filter on a 1985 Mercury Grand Marquis?

Answer 1

The filter is located behind the right frame member on ours, just ahead of the wheel well. It is held in a protective metal cover and attached by two small bolts. The fuel lines are attached by nylon plastic retainer clips, kind of like a hair pin. A stubby screwdriver can be used to pry the clip off from the back side. They can be reused if taken off carefully, but are best replaced. Ask for fuel line retainer clips at your auto parts store. Take one for comparison. The fuel lines should be de-pressurized and the procedure depends on the type of carb or injector system you have. If pressure is not relieved it gets messy when the lines are released. Pull the retainer clips and unbolt the metal cover from its frame mount. Swap the new filter in and reassemble. Turn on the key switch for three seconds and the off. Repeat 4 or 5 times to re-pressurize the system. Good Luck.