Envoy 2WD L6-4.2L (2008)
Notice: Refer to Excessive Force and Oxygen Sensor Notice.
3. Remove the HO2S (2). Use the J 39194-B, if required.
Installation Procedure
Important: A special anti-seize compound is used on the HO2S threads. The compound consists of liquid graphite and glass beads. The
graphite tends to burns away, but the glass beads remain, making the sensor easier to remove. New, or service replacement sensors already
have the compound applied to the threads. If the sensor is removed from an exhaust component and if for any reason the sensor is to be
reinstalled, the threads must have anti-seize compound applied before reinstallation.
1. If reinstalling the old sensor, coat the threads with the anti-seize compound P/N 12377953, or equivalent.
Notice: Refer to Component Fastener Tightening Notice.
2. Install the HO2S (2). Use the J 39194-B, if required.
