Installation Procedure

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Install the fuel level sensor, if necessary. Refer to Fuel Level Sensor Replacement .

Fig 1: View Of Sending Unit And Seal

Courtesy of GENERAL MOTORS CORP.

Install the sending unit and a NEW seal.

Fig 2: Identifying Lock Ring

Courtesy of GENERAL MOTORS CORP.

NOTE:

Always replace the fuel sender seal when installing the fuel sender assembly. Replace the lock ring if necessary. DO NOT apply any type of lubrication in the seal groove.
Ensure the lock ring is installed with the correct side facing upward. A correctly installed lock ring will only turn in a clockwise direction.

Use the J 45722 in order to install the fuel sender lock ring. Turn the fuel sender lock ring in a clockwise direction.
Install the fuel tank. Refer to Fuel Tank Replacement .