Sierra 2500 4WD V8-6.6L DSL Turbo (2007)
Fuel Level Sensor: Service and Repair
Fuel Sender Assembly Replacement
Fuel Sender Assembly Replacement
Tools Required
J 45722 Fuel Sender Lock Ring Wrench
Removal Procedure
1. Remove the fuel tank..
2. Disconnect the fuel lines from the sending unit.
Notice: Avoid damaging the lock ring. Use only J-45722 to prevent damage to the lock ring.
Notice: Do Not handle the fuel sender assembly by the fuel pipes. The amount of leverage generated by handling the fuel pipes could damage the
joints.
Important: Do NOT use impact tools. Significant force will be required to release the lock ring. The use of a hammer and screwdriver is
not recommended. Secure the fuel tank in order to prevent fuel tank rotation.
3. Use the J 45722 and a long breaker-bar in order to unlock the fuel sender lock ring.
4. Remove the sending unit and seal. Discard the seal.
5. Clean the sending unit sealing surfaces.