Avalanche 4WD V8-5.3L (2011)
Fuel Pressure Regulator: Service and Repair
Fuel Tank Fuel Pump Module Replacement
Special Tools
J 45722 Fuel Sender Lock Ring Wrench
Removal Procedure
1. Remove the rear fuel tank. Refer to Fuel Tank Replacement .
2. Disconnect the evaporative emission (EVAP) line quick connect fittings from the fuel tank module. Refer to Plastic Collar Quick Connect Fitting
Service See: Fuel Line Coupler/Service and Repair/Plastic Collar Quick Connect Fitting Service.
Caution: Avoid damaging the lock ring. Use only J-45722 to prevent damage to the lock ring.
Caution: 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.
Note: 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. Using the J 45722 and a long breaker bar, rotate the ring clockwise unlocking the fuel tank module lock ring.
4. Remove the lock ring.
