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July 19, 2013 Service bulletin

10054E

Chevrolet technical service bulletin G-171218 for 2005-2007 Chevrolet Trailblazer, 2005-2007 GMC Envoy and 2006 Chevrolet Trailblazer EXT and others.

Bulletin number
G-171218
Component
Fuel system, gasoline: storage: tank assembly
Summary
10054E - Special Coverage (customer co-pay discontinued). The contacts on the fuel level sensor may wear prematurely. This wear could cause the fuel gauge to read empty after filling the tank and cause the malfunction indicator light (MIL) to illuminate. As the fuel level in the tank drops, the MIL may turn off and the gauge may display a reading; however, the reading may indicate a slightly higher level of fuel than what is in the tank. Eventually, as the contacts continue to wear, the fuel gauge will stop working and the MIL will illuminate continuously. If the condition occurs within the stated terms, dealers will install a new design fuel level sensor.

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