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Home >> Mitsubishi >> 2008 >> Lancer ES, Standard >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel Supply - Lancer >> On-Vehicle Service >> Fuel Pump Module Replacement
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Fuel Pump Module Replacement

  1. Remove the rear seat assembly (Refer to REAR SEAT ASSEMBLY ) and turn up the floor carpet.
  2. Remove the floor inspection lid (LH).
    Fig 1: Identifying Floor Inspection Lid (LH)
    G05375323Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  3. Disconnect the fuel pump module connector and fuel tank differential pressure sensor connector.
  4. Release the fuel pressure in the fuel line. (Refer to FUEL PUMP CONNECTOR DISCONNECTION (HOW TO REDUCE PRESSURIZED FUEL LINES) ].
    Fig 2: Identifying Fuel Pump Module Connector And Fuel Tank Differential Pressure Sensor Connector
    G05375324Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  5. Insert a flat-tip screwdriver [6mm (0.24 inch) wide and 1mm (0.04 inch) thick] into the retainer of the fuel main pipe.
    Fig 3: Inserting Flat-Tip Screwdriver Into Retainer Of Fuel Main Pipe
    G05375325Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  6. Turn the flat-tip screwdriver about 90 degrees to push up the retainer, and disconnect the fuel main pipe from the fuel pump module.
    Fig 4: Pushing Up Retainer
    G05375326Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  7. Remove the mounting nuts of fuel tank pump module.
    Fig 5: Locating Fuel Tank Pump Module Mounting Nuts
    G05375327Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    CAUTION: Pay attention not to damage the fuel level sensor and float of the fuel pump module when removing the fuel pump module from the fuel tank.
  8. Remove the fuel pump module from service hole.
  9. Replace the fuel pump module gasket with a new one.
    CAUTION:
    • Pay attention not to damage the fuel level sensor and the float of the fuel pump module when installing it to the fuel tank.
    • When installing the fuel pump module to the fuel tank, check that the fuel level sensor moving area moves smoothly.
  10. Install the fuel pump module to the fuel tank through the service hole, and tighten the mounting nuts to the specified torque.

    Tightening torque: 2.5 ± 0.4 N.m (22 ± 4 in-lb) 

  11. Before the installation, push up the retainer of the fuel main pipe.
    Fig 6: Pushing Up Retainer Of Fuel Main Pipe
    G05375328Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  12. Connect the connector of fuel main pipe to the fuel pump module securely and push down the retainer of the connector to lock it firmly.
  13. After the installation, slightly pull the fuel main pipe to check that it is connected securely. At this time, also check that there is approximately 1 mm (0.04 inch) play.
    Fig 7: Pushing Down Retainer
    G05375329Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  14. Connect the fuel pump module connector and fuel tank differential pressure sensor connector.
    Fig 8: Identifying Fuel Pump Module Connector And Fuel Tank Differential Pressure Sensor Connector
    G05375324Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  15. Install the floor inspection lid (LH).
  16. Return the floor carpet to the original condition and install the rear seat assembly (Refer to REAR SEAT ASSEMBLY ).
    Fig 9: Identifying Floor Inspection Lid (LH)
    G05375323Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
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