OEM Chevrolet Avalanche 2500 Fuel Level Sensor

Chevrolet Avalanche 2500 Fuel Level Sensor Parts Questions & Experts Answers

• Fuel Gauge Sending Unit
  88965441
  Q: How to Replace the Fuel Level Sensor in the Rear Tank on Chevrolet Avalanche 2500?

  A: It is necessary to begin Fuel Level Sensor replacement in the rear tank by removing the tank then disconnecting the evaporative emission (EVAP) lines from the Fuel Tank module. Using the Fuel Level Sensor lock ring wrench (J 45722) together with a long breaker-bar will help unlock the Fuel Level Sensor lock ring without damaging it because of the j 45722 alone. Manipulate the Fuel Level Sensor away from fuel pipes to avoid injuring the joints and discard impact tools since releasing the lock ring needs significant force while hammer and screwdriver methods should be avoided. You must first secure the Fuel Tank from rotation before taking out the j 45722 tool and its lock ring. You should elevate the Fuel Tank module carefully to expose quick connect fittings under the cover. Then remove the module by disconnecting vapor line quick connect connectors from below. Set the old Fuel Tank module seal aside while placing the lock ring onto a flat surface for measuring its clearance with seven points using a feeler gauge. Relying on the "do not reuse" stamp on the lock ring can be valid for reuse when it is neither damaged nor warped but visual inspection determines the absence of both characteristics. The lock ring needs replacement when warpage extends beyond 0.41 mm (0.016 in). To install the Fuel Tank module you should first position its new seal onto the Fuel Tank then partially insert the module while quickly connecting the vapor line fittings before completing the installation. You should position the lock ring and then use the Fuel Level Sensor lock ring wrench (J 45722) tool to rotate it clockwise until locking position while ensuring correct side exposure points up and restriction to clockwise rotation only. Through the final step of processing, install the Fuel Tank while joining its evap lines to the Fuel Tank module.