TrailBlazer 2WD V8-5.3L (2007)
1. If reinstalling the old sensor, coat the threads with anti-seize compound GM P/N 12377953, or equivalent.
Notice: Refer to Component Fastener Tightening Notice.
2. Install the HO2S (2).
Tighten the sensor to 42 N.m (31 lb ft).
3. Connect the HO2S electrical connector (1).
4. Install the CPA retainer.
5. Lower the vehicle.
