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.

  1. Relieve system fuel pressure. Refer to Fuel Pressure Relief .
  2. Drain fuel tank. Refer to Fuel Tank Draining .

  3. Object Number: 14057  Size: SH
  4. Remove the fuel tank (4). Refer to Fuel Tank Replacement .
  5. Remove the modular fuel sender assembly.
  6. 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.

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

Installation Procedure


    Object Number: 14057  Size: SH
  1. Install a new O-ring on modular fuel sender (3) to the fuel 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 the snap ring (1) into designated slots.
  6. Install the fuel tank. Refer to Fuel Tank Replacement .
  7. Lower vehicle.
  8. Refill tank and reinstall the fuel fill cap.
  9. 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.

  10. Reconnect the negative battery cable.
  11. Check for fuel leaks.
  12. 9.1. Turn the ignition switch ON for 2 seconds.
    9.2. Turn the ignition switch OFF for 10 seconds.
    9.3. Turn the ignition switch ON.
    9.4. Check for fuel leaks.