pontiac Workshop Repair Guides

Pontiac Workshop Service and Repair Manuals

Heated Oxygen Sensor Replacement - Bank 1 Sensor 1|Page 1046 > < Heated Oxygen Sensor Replacement - Bank 1 Sensor 1|Page 1044
Page 1
background image

Oxygen Sensor: Service and Repair
Heated Oxygen Sensor Replacement - Bank 2 Sensor 2

Heated Oxygen Sensor Replacement - Bank 2 Sensor 2

Special Tools

J 39194-B  Heated Oxygen Sensor Wrench

Removal Procedure

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle   (See: Maintenance/Vehicle Lifting/Service and Repair).
2. Remove the connector position assurance (CPA) retainer (1).
3. Disconnect the heated oxygen sensor (HO2S) electrical connector (2).

Note:  The HO2S may be difficult to remove when the engine temperature is less than 48°C (120°F). Excessive force may damage the threads in

Heated Oxygen Sensor Replacement - Bank 1 Sensor 1|Page 1046 > < Heated Oxygen Sensor Replacement - Bank 1 Sensor 1|Page 1044