Mercury 2L2Z-9155-AB Filter Assembly - Fuel

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This procedure requires a special fuel line disconnect tool available at auto part stores. The fuel filter is mounted under the vehicle on the left frame rail. On later Expedition/Navigator models, there is a plastic protective cover over the fuel filter. Twist the fasteners counterclockwise to remove the cover. Inspect the hose fittings for cleanliness. Clean if necessary. Relieve fuel system pressure. Remove safety clips from the inlet and outlet lines. Use the disconnect tool to release the fuel lines from the filter. Pull the hoses straight off the filter. Check clips for damage. Loosen the filter mounting clamp with a screwdriver. Remove the filter and install the new one in the same direction. Push hoses onto the filter and secure with clips. Start the engine and check for leaks.

The fuel filter is under the vehicle in front of the fuel tank. Check hose fittings for cleanliness. Clean if necessary. Relieve fuel pressure and disconnect battery cable. There are two types of quick-connect fittings: "squeeze" and "push clip". Disengage by pressing or pulling locking tangs. Pull fuel hoses off filter. Be prepared for fuel spillage. Loosen clamp with screwdriver. Note filter direction. Remove and install new filter in same direction. Push hoses onto filter until seated and locked. Reconnect battery cable and check for fuel leaks.

The fuel filter is mounted within the left frame rail. The manufacturer recommends replacing it at 30,000 miles for California vehicles, but it's not required. The fuel filters on later model vehicles may vary slightly, so match the new filter with the old one to confirm it's correct. Position the front end of the vehicle higher than the rear, remove and reinstall the gas cap to relieve fuel system pressure. Inspect and clean the hose fittings if necessary. Disconnect the push-connect fittings from the filter. Remove the fuel filter mounting bracket nut if needed. Note the arrow on the filter for installation direction. Loosen the clamp screw and detach the filter from the bracket. Install the new filter with the arrow pointing the right way and tighten the clamp screw. Connect each fuel line to the filter. Start the engine and check for fuel leaks.

A special fuel line disconnect tool.