GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Caution: In order to reduce the risk of fire and personal injury that may result from a fuel leak, always replace the fuel sender gasket when reinstalling the fuel sender assembly.


    Object Number: 14057  Size: SH

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Remove the negative battery cable.
  2. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
  3. Drain the fuel tank. Refer to Fuel Tank Draining Procedure .
  4. Remove the fuel tank (4). Refer to Fuel Tank Replacement .
  5. Important: 

       • The modular fuel sender assembly may spring up from its position.
       • When removing the modular fuel sender assembly from the fuel tank, be aware that the reservoir bucket is full of fuel. It must be tipped slightly during removal to avoid damage to the float. Discard fuel sender O-ring and replace with a new one.
       • Carefully discard the reservoir fuel into an approved container.

  6. While holding the modular fuel sender assembly (3) down, remove the snap ring (1) from designated slots located on the retainer (2).
  7. Remove the fuel sender assembly from the fuel tank.

Installation Procedure


    Object Number: 14057  Size: SH
  1. Install a new O-ring on modular fuel sender (3) to tank.
  2. Align tab on front of sender (2) with slot on front of retainer snap ring.
  3. Slowly apply pressure to top of spring loaded sender until sender aligns flush with retainer on tank.
  4. Important: Be sure that the snap ring is fully seated within the tab slots.

  5. Insert snap ring (1) into designated slots.
  6. Install the fuel tank. Refer to Fuel Tank Replacement .
  7. Lower vehicle.
  8. Refill tank.
  9. Connect the negative battery cable.
  10. Inspect for fuel leaks through the following steps:
  11. 9.1. Turn the ignition to the ON position for two seconds
    9.2. Turn the ignition to the OFF position for ten seconds.
    9.3. Turn the ignition to the ON position
    9.4. Check for fuel leaks.