TrailBlazer 2WD V8-5.3L (2007)
Important: Never reuse the old seal or a fuel leak may occur. Always use a NEW seal.
1. Install a NEW seal (3) onto the fuel tank.
Important: Place the fuel pump strainer in a horizontal position when you install the fuel sender in the tank. When installing the fuel
sender assembly, assure that the fuel pump strainer does not block full travel of the float arm.
2. Install the fuel sender assembly (2).
Important: 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.
3. Use the J45722 in order to install the fuel sender lock ring. Turn the fuel sender lock ring in a clockwise direction.
