gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Heated Oxygen Sensor Replacement - Bank 1 Sensor 1|Page 3123 > < Heated Oxygen Sensor Replacement - Bank 1 Sensor 1|Page 3121
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2. Install the HO2S (1).

Tighten the sensor to 42 Nm (31 lb ft).

3. Route the HO2S wiring under the rear HO2S electrical connector.
4. Connect the HO2S electrical connector (4) to the engine wiring harness electrical connector (1).
5. Lower the vehicle.

Heated Oxygen Sensor Replacement - Bank 1 Sensor 1|Page 3123 > < Heated Oxygen Sensor Replacement - Bank 1 Sensor 1|Page 3121