Sierra 1500 2WD V6-4.3L VIN X (2004)
1. If reinstalling the old HO2S, coat the threads with anti-seize compound GM P/N 12377953, or equivalent.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the bank 2 HO2S (2).
Tighten
Tighten the sensor to 42 N.m (31 lb ft).
3. Connect the HO2S electrical connector to the harness.
4. Connect the CPA retainer.
5. Install the HO2S connector to the crossmember, if equipped with 4WD.
