GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 44402 Fuel Tank Sending Unit Wrench

Removal Procedure


    Object Number: 871947  Size: SH
  1. Remove the fuel tank. Refer to Fuel Tank Replacement .
  2. Disconnect the fuel lines from the sending unit, if necessary. Refer to Plastic Collar Quick Connect Fitting Service .
  3. Using J 44402 , remove the sending unit lock ring.

  4. Object Number: 871951  Size: SH
  5. Remove the lock ring, sending unit, and rubber seal. Discard the seal.
  6. Clean the sending unit sealing surfaces.

Installation Procedure


    Object Number: 871951  Size: SH

    Important: The fuel pump strainer must be in a horizontal position when the sending unit is installed in the tank. When installing the sending unit, assure that the fuel pump strainer does not block full travel of the float arm.

  1. Install the sending unit and a NEW rubber seal.
  2. Align the alignment tab to the correct location on the fuel tank.


    Object Number: 871947  Size: SH
  3. Using J 44402 , install the sending unit lock ring.
  4. Connect the fuel lines to the sending unit, if necessary. Refer to Plastic Collar Quick Connect Fitting Service .
  5. Install the fuel tank. Refer to Fuel Tank Replacement .