GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Caution: Gasoline or gasoline vapors are highly flammable. A fire could occur if an ignition source is present. Never drain or store gasoline or diesel fuel in an open container, due to the possibility of fire or explosion. Have a dry chemical (Class B) fire extinguisher nearby.


    Object Number: 180378  Size: SH
  1. Relieve the fuel system fuel pressure. Refer to the Fuel Pressure Relief .

  2. Object Number: 211302  Size: SH
  3. Drain the fuel tank (1). Refer to Fuel Tank Draining .
  4. Remove the fuel sender assembly. Refer to Fuel Sender Assembly Replacement .

Disassemble Procedure


    Object Number: 191387  Size: SH
  1. Inspect the position of the fuel strainer (1) for installation.
  2. Support the reservoir with one hand and grasp the fuel strainer with the other hand.
  3. Place the fuel sender assembly upside down on a bench.
  4. Remove the fuel sender strainer.
  5. Inspect the fuel sender strainer. If the fuel sender strainer is contaminated, the fuel tank should be cleaned. Refer to Fuel System Cleaning .
  6. Discard the fuel level sensor after inspection.

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

Assemble Procedure


    Object Number: 191387  Size: SH

    Important: Always install a new fuel level strainer (1) when installing a fuel sender or fuel level sensor assembly.

  1. Position the new fuel sender strainer on the fuel sender and push the outer edge of the fuel sender strainer until the fuel sender strainer is fully seated.

  2. Object Number: 50562  Size: SH
  3. Install the new fuel level sensor assembly.
  4. Install the electrical connectors to the fuel pump and the cover assembly.

Installation Procedure


    Object Number: 191412  Size: SH
  1. Install the fuel sender assembly. Refer to Fuel Sender Assembly Replacement .
  2. Add fuel and install the fuel tank filler pipe cap.
  3. Connect the negative battery cable. Refer to Battery Cable Replacement in Engine Electrical.
  4. Inspect for leaks.
  5. 4.1. Turn the ignition switch to the On position for 2 seconds.
    4.2. Turn the ignition switch to the Off for 10 seconds.
    4.3. Turn the ignition switch to the On position.
    4.4. Check for fuel leaks.