cadillac Workshop Repair Guides

Cadillac Workshop Service and Repair Manuals

Heated Oxygen Sensor Replacement - Bank 1 Sensor 1|Page 6644 > < Heated Oxygen Sensor Replacement - Bank 1 Sensor 1|Page 6642
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Oxygen Sensor: Service and Repair
Heated Oxygen Sensor Replacement - Bank 1 Sensor 2

Heated Oxygen Sensor Replacement - Bank 1 Sensor 2

Removal Procedure

Caution:  Refer to Fuel and Evaporative Emission Hose/Pipe Connection Cleaning Caution   (See: Emission Control Systems/Evaporative
Emissions System/Service Precautions).

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle   (See: Maintenance/Vehicle Lifting/Service and Repair).
2. Disconnect the heated oxygen sensor (HO2S) electrical connector. Note the harness routing and retainers for reassembly.
3. Remove the HO2S (1).

Installation Procedure

Note:  Use special anti-seize compound on the HO2S threads. The compound consists of graphite suspended in fluid and glass beads. The graphite
burns away, but the glass beads remain, making the sensor easier to remove. New or service sensors already have the compound applied to the
threads. If you remove an oxygen sensor and if for any reason you must reinstall the same oxygen sensor, apply the anti-seize compound to the
threads before reinstallation.

Heated Oxygen Sensor Replacement - Bank 1 Sensor 1|Page 6644 > < Heated Oxygen Sensor Replacement - Bank 1 Sensor 1|Page 6642