GM Service Manual Online
For 1990-2009 cars only

Disassembly 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.

  1. Remove the fuel sender assembly from the fuel tank. Refer to Fuel Sender Assembly Replacement .

  2. Object Number: 332234  Size: SH
  3. Disconnect the fuel level sensor (gauge sender) electrical connector (1) from the fuel sender assembly.

  4. Object Number: 332237  Size: SH

    Important: Do not apply pressure to the fuel level sensor resistor plate or the float arm. Pressure can deform these parts and cause them to operate incorrectly.

  5. Depress the retaining tab (1) and slide the fuel level sensor assembly down in order to remove the sensor from the fuel sender assembly.

  6. Object Number: 332243  Size: SH
  7. Remove the lower assembly end cap (1) by releasing the three snap-fit catches with a screwdriver (2).

  8. Object Number: 332246  Size: SH
  9. Remove the fuel pump cushion (1).

  10. Object Number: 332248  Size: SH
  11. Disconnect the two fuel pump electrical connections (1) from the fuel sender subassembly.

  12. Object Number: 355412  Size: SH
  13. Pull the fuel pump (1) firmly down out of the fuel sender assembly housing (2).
  14. Release the three snap-fit catches securing the housing (2) to the fuel sender subassembly and remove the housing.

  15. Object Number: 332249  Size: SH

    Important: When removing the fuel tube and grommets be careful not to mar the sealing surfaces. If the sealing surfaces are marred or damaged a fuel leak may occur.

  16. Remove the fuel tube (4) and the two grommets (3) from the fuel sender subassembly. The fuel sender subassembly contains the fuel filter and must be serviced as an assembly.

Assembly Procedure

Important: Use of new grommets, cushions, and spacers is recommended in order to prevent failure and fuel pressure loss.


    Object Number: 332249  Size: SH
  1. Install the spacer (2) onto the fuel pump outlet pipe.
  2. Lubricate the grommets (3) with engine oil and install the two grommets (3) and the fuel tube (4) into the fuel sender subassembly.

  3. Object Number: 355412  Size: SH
  4. Install the housing (2) to the fuel sender subassembly, being sure to interlock the three snap-fit catches.
  5. Install the fuel pump (1) up through the housing (2) and into the fuel sender subassembly, aligning the fuel pump outlet pipe with the fuel tube in the subassembly.

  6. Object Number: 332246  Size: SH
  7. Install the fuel pump cushion (1) between the fuel pump and the lower assembly end cap.
  8. Attach the lower assembly end cap to the housing, being sure to interlock the three snap-fit catches.

  9. Object Number: 332248  Size: SH
  10. Connect the two fuel pump electrical connectors (1) to the fuel sender assembly.

  11. Object Number: 332251  Size: SH
  12. Insert the locating tab (1) on the fuel level sensor assembly into the channel (2) on the fuel sender assembly and slide upward until locked in place.

  13. Object Number: 332234  Size: SH
  14. Connect the fuel level sensor electrical connector (1) to the fuel sender assembly.
  15. Install the fuel sender assembly into the fuel tank. Refer to Fuel Sender Assembly Replacement .