GM Service Manual Online
For 1990-2009 cars only

Tools Required

SA9156E Fuel Tank Lock Ring Remover

Removal Procedure

    Caution: Whenever fuel line fittings are loosened or removed, wrap a shop cloth around the fitting and have an approved container available to collect any fuel.

    Notice: Clean all fuel pipe and hose connections and surrounding areas before disassembling to avoid possible contamination of the fuel system. Spray the fuel pump module cam-lock ring tang with penetrating oil prior to attempting removal.

  1. Remove the fuel tank. Refer to Fuel Tank Replacement .

  2. Object Number: 933888  Size: SH
  3. Disconnect the fuel line from the secondary fuel pump module.

  4. Object Number: 933911  Size: SH
  5. Disconnect the EVAP vent line from the secondary fuel pump module.

  6. Object Number: 933896  Size: SH
  7. Disconnect the fuel level sender and fuel tank pressure sensor electrical connectors.

  8. Object Number: 933867  Size: SH

    Notice: To prevent retainer damage, do not attempt to remove the retainer with a 12 in. or shorter ratchet/breaker bar.

  9. Use the SA9156E and remove the fuel pump module retaining ring. A 1/2 in. breaker bar, approximately 45.7 cm (18 in) ling will easily loosen and remove the lock ring.

  10. Object Number: 933876  Size: SH

    Notice: To prevent bending of the sending unit float arm during removal, lift the pump module up slightly to disengage the orientation tabs in the tank and rotate the module 45 degrees.

  11. Remove the secondary fuel pump module.
  12. Important: Always replace the fuel pump module-to-tank seal, H-ring, when the fuel pump module is removed.

  13. Discard the fuel pump module-to-tank seal.
  14. If the fuel level sending unit is not being replaced as well, remove the fuel level sender. Refer to Fuel Level Sensor Replacement .

Installation Procedure


    Object Number: 933867  Size: SH
  1. Install the fuel level sending unit into the new fuel pump. Refer to Fuel Level Sensor Replacement .
  2. Insert the new secondary fuel pump module with the level sender and new fuel pump-to-tank seal. Ensure the orientation tabs are aligned.
  3. Use the SA9156E to install the fuel pump lock ring.
  4. Important: New fuel line quick connect retainers must be used.

  5. Connect the fuel lines and wiring harness to the secondary fuel pump module.
  6. Install the fuel tank. Refer to Fuel Tank Replacement .