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Home >> Buick >> 2005 >> Century Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Introduction >> Repair Instructions >> Fuel Sender Assembly Replacement >> Removal Procedure
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Removal Procedure

    CAUTION: Fuel Vapors can collect while servicing fuel system parts in enclosed areas such as a trunk. To reduce the risk of fire and increased exposure to vapors:
    • Use forced air ventilation such as a fan set outside of the trunk.
    • Plug or cap any fuel system openings in order to reduce fuel vapor formation.
    • Clean up any spilled fuel immediately.
    • Avoid sparks and any source of ignition.
    • Use signs to alert others in the work area that fuel system work is in process.
    NOTE: Clean all of the following areas before performing any disconnections in order to avoid possible contamination in the system:
    • The fuel pipe connections
    • The hose connections
    • The areas surrounding the connections
    IMPORTANT: Always maintain cleanliness when servicing fuel system components.
    Fig 1: Locating Fuel Sender Access Panel
    GM65739Courtesy of GENERAL MOTORS CORP.
  1. Relieve the fuel system fuel pressure. Refer to Fuel Pressure Relief Procedure .
  2. Remove the rear compartment trim panel. Refer to Compartment Trim Panel Replacement - Rear in Body Rear End.
  3. Remove the fuel sender access panel nuts.
  4. Remove the fuel sender access panel.
  5. Disconnect the fuel tank pressure (FTP) sensor electrical connector.
  6. Remove the fuel tank pressure sensor.
  7. Disconnect the fuel sender electrical connector.
  8. Clean the fuel pipes, and fuel sender assembly to prevent possible fuel contamination during removal.
  9. Disconnect the quick-connect fittings at the fuel sender assembly. Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
  10. Fig 2: View Of Fuel Sender Retaining Ring
    GM66012Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The retaining fuel sender assembly will spring-up when the ring is removed.
  11. Hold down the fuel sender and remove the fuel sender retaining ring.
  12. Remove the fuel sender assembly.
  13. Clean the fuel sender assembly sealing surfaces.
  14. Inspect the fuel sender assembly sealing surfaces.