TrailBlazer 4WD L6-4.2L VIN S (2002)
NOTE: Refer to Component Fastener Tightening Notice in Service Precautions.
2. Install the heated oxygen sensor.
Tighten
Tighten the HO2S to 41 N.m (30 lb ft).
3. Connect the HO2S electrical connector (1).
4. Lower the vehicle.