Mopar 68412550AA Fuel Pump/Level Unit Module

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To remove the fuel pump/fuel level sensor module, the fuel system pressure must be relieved, the negative battery terminal cable must be disconnected, and the fuel tank must be drained to under 5/8-full. The rear seat cushion is removed, and the foam pad covering the module is pulled back. The plastic access cover is carefully lifted off, and the electrical connector is disconnected. The area surrounding the mounting flange is cleaned, and the lock-ring is loosened and unscrewed. The module is lifted up, and the electrical connectors and fuel supply line fitting are disconnected. The residual fuel is drained, and the module is carefully removed from the fuel tank.

Begin by removing the module. Detach the fuel level sensor from the fuel filter module by spreading the four locking tangs and pulling off the sensor. Cut the two wire ties that secure the wiring to the fuel return lines and disconnect the ground wires from the fuel filter module. Remove the fuel level sensor. If you're only replacing the fuel pressure regulator, you can stop here. To remove the fuel pressure regulator from the fuel filter module, pry off the retaining clip. Inspect the condition of the fuel pressure regulator O-rings. If you're replacing the fuel filter module, remove the ground ring from the recess for the fuel pressure regulator. When installing the ground ring in the new fuel filter module, ensure that the ground ring terminal is seated correctly in the notch. After installation, turn the ignition switch to On to activate the fuel pump and check for fuel leakage.

The auxiliary fuel pump module is located in the right side of the fuel tank and includes the main fuel filter and fuel pressure regulator.

Start by removing the module. Carefully cut the wiring harness clip and disengage the fuel level sensor wires from the clip. Then, loosen the two retaining clips and pull the fuel level sensor out of the fuel pump module. After installation, turn the ignition switch to On to activate the fuel pump and build up fuel pressure in the fuel lines.