gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (2500 Series)|Page 9287 > < Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (2500 Series)|Page 9285
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Oxygen Sensor: Service and Repair
Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (2500 Series - Cab/Chassis)

Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (2500 Series - Cab/Chassis)

Removal Procedure

Notice:  Refer to Heated Oxygen and Oxygen Sensor Notice.

1. Raise and support the vehicle. Refer to Vehicle Lifting.
2. Remove the HO2S electrical connector rosebud clip from the engine wiring harness clip.
3. Remove the connector position assurance (CPA) retainer (8).
4. Disconnect the HO2S electrical connector (3) from the engine wiring harness electrical connector (4).

Notice:  Refer to Excessive Force and Oxygen Sensor Notice.

Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (2500 Series)|Page 9287 > < Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (2500 Series)|Page 9285