OEM 2010 Cadillac STS Fuel Tank

2010 Cadillac STS Fuel Tank Parts Questions & Experts Answers

• Q: How to replace the secondary fuel tank module on 2010 Cadillac STS?

  A: The replacement of the secondary fuel tank module requires tank fuel removal to expose the module. Handle the electrical connector from the secondary fuel tank module with care while moving it aside because a lock ring can be damaged. The J 45722 and a long breaker-bar allow the counterclockwise rotation of the fuel tank module lock ring for removal of the cam lock ring. The procedure requires you to separate the secondary fuel tank module partially to reach and detach the fuel transfer hose quick connect fitting. Pull out the secondary fuel tank module from the fuel tank container while throwing out the module seal. Checking the lock ring reveals damage beyond 0.41mm (0.016in) makes it necessary to obtain a new replacement ring. The process to install a new fuel tank module seal requires holding the fuel transfer hose from within the tank while partially installing the secondary fuel tank module and connecting the fuel transfer hose quick connect fitting. Push the module downward while ensuring that the lock ring faces the correct orientation which will allow clockwise rotation. The J 45722 with a length breaker-bar should be used to turn the cam lock ring clockwise until it reaches full seating position. Before reinstalling the fuel tank users must reconnect the electrical connector to the secondary fuel tank module and then engage the connector interlock.