G6 V6-3.5L (2009)
Note: A special anti-seize compound is used on the HO2S 1 threads. The compound consists of graphite suspended in fluid and glass beads. The
graphite will burn away, but the glass beads will remain, making the sensor easier to remove. New or service sensors will already have the
compound applied to the threads. If a sensor is removed from an engine and is to be reinstalled, the threads must have anti-seize compound applied
before the reinstallation.
1. Coat the threads of the HO2S 1 with anti-seize compound GM P/N 12377953 or an equivalent, if necessary.
Caution: Refer to Fastener Caution (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).
2. Install the HO2S 1.
Use the J 39194-B to tighten the sensor to 41 Nm (30 lb ft).
3. Connect the H02S 1 electrical connector.
