GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 34730 Fuel Pressure Gauge

Caution: Provide proper ventilation when working with fuel in enclosed areas where fuel vapors can collect. The lack of adequate ventilation may result in personal injury.

Caution: Always wear safety goggles when working with fuel in order to protect the eyes from fuel splash.

Notice: Do Not handle the fuel sender assembly by the fuel pipes. The amount of leverage generated by handling the fuel pipes could damage the joints.


    Object Number: 211302  Size: SH
  1. Relieve the fuel system fuel pressure. Refer to Fuel Pressure Relief .
  2. Drain the fuel tank (1) to at least 3/4 of a tank full. Refer to Fuel Tank Draining .
  3. Important: The modular fuel sender support assembly will spring-up when the locking ring is moved.


    Object Number: 191412  Size: SH
  4. Remove the fuel sender assembly. Refer to Fuel Sender Assembly Replacement .

Disassemble Procedure


    Object Number: 191387  Size: SH
  1. Note the position of the fuel sender strainer (1) for installation.
  2. Support the reservoir with one hand and grasp the fuel sender strainer with the other hand.

  3. Object Number: 23659  Size: SH
  4. Pull the external fuel sender strainer off of the fuel pump.
  5. Inspect the fuel sender strainer. If the fuel sender strainer is contaminated, the fuel tank should be cleaned.
  6. Discard the fuel sender strainer after inspection.

  7. Object Number: 50562  Size: SH
  8. Disassemble the electrical connectors from the sensor assembly of the fuel pump and the cover assembly.
  9. Disassemble the fuel level sensor assembly.

Assemble Procedure


    Object Number: 191412  Size: SH
  1. Assemble the fuel level sensor assembly.
  2. Assemble the electrical connectors to the fuel pump and the cover assembly.

  3. Object Number: 23659  Size: SH
  4. Position the new fuel sender strainer on the modular fuel sender and push on the outer edge of the fuel sender strainer until the fuel sender strainer is fully seated.

Installation Procedure


    Object Number: 191412  Size: SH
  1. Reinstall the fuel sender assembly. Refer to Fuel Sender Assembly Replacement .
  2. Add fuel to the fuel tank.
  3. Install the fuel tank filler pipe cap.
  4. Connect the negative battery cable. Refer to

    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.

    in Cautions and Notices.
  5. Reinstall the rear seat lower cushion. Refer to Rear Seat Cushion Replacement .
  6. 5.1. Turn the ignition switch ON for 2 seconds.
    5.2. Turn the ignition switch OFF for 10 seconds.
    5.3. Turn the ignition switch ON.
    5.4. Check for fuel leaks.
  7. Reinstall the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical.
  8. Reinstall the compartment close out panel. Refer to Compartment Close-Out Panel Replacement - Rear in Body Rear End.