Main Fuel Pump Module

Fig 1: Fuel Pump Module O-Ring

Courtesy of CHRYSLER GROUP, LLC

CAUTION:

Whenever the fuel pump module is serviced, the rubber O-ring seal must be replaced.

Clean the rubber O-ring seal area of the fuel tank module opening and install a new rubber O-ring seal.

Fig 2: Main Fuel Pump Module Internal Fuel Line
Courtesy of CHRYSLER GROUP, LLC
Reconnect the internal auxiliary pump fuel line to the main fuel pump module.

Fig 3: Main Fuel Pump Module
Courtesy of CHRYSLER GROUP, LLC
Lower the main fuel pump module into the fuel tank using caution not to bend the float arm.

Fig 4: Location Tab
Courtesy of CHRYSLER GROUP, LLC

NOTE:
The fuel pump module must be properly located in the fuel tank for the fuel level gauge to work properly.
Align the rubber O-ring seal and rotate the main fuel pump module to the orientation noted or marked during removal. This step must be performed for the fuel level gauge to work properly.

Fig 5: Lock Ring Tool
Courtesy of CHRYSLER GROUP, LLC
Position the lock ring over the top of the main fuel pump module flange.
Position the (special tool #9340, SAE Fuel Pump Lock Ring Wrench) into the notches on the outside edge of the lock ring.
Install a 1/2 inch drive breaker bar into the (special tool #9340, SAE Fuel Pump Lock Ring Wrench).
Rotate the breaker bar clockwise until all seven notches of the lock ring have engaged.
Reinstall the fuel tank into the vehicle. Refer to TANK, FUEL, INSTALLATION .