gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Heated Oxygen Sensor (HO2S) Replacement Bank 1 Sensor 1|Page 2102 > < Heated Oxygen Sensor (HO2S) Replacement Bank 1 Sensor 1|Page 2100
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1. Coat the threads of the heated oxygen sensor with anti-seize compound P/N 12377953, or equivalent if necessary.

NOTE:  Refer to Fastener Notice in Service Precautions.

2. Install the heated oxygen sensor (3).

Tighten
Tighten the HO2S to 41 N.m (30 lb ft).

3. Connect the HO2S electrical connector (3).
4. Lower the vehicle.

Heated Oxygen Sensor (HO2S) Replacement Bank 1 Sensor 1|Page 2102 > < Heated Oxygen Sensor (HO2S) Replacement Bank 1 Sensor 1|Page 2100