Colorado 4WD L5-3.7L (2007)
Oxygen Sensor: Service and Repair
Heated Oxygen Sensor 2 Replacement
Heated Oxygen Sensor 2 Replacement
Tools Required
J 39194-B Heated Oxygen Sensor Wrench
Notice: When replacing the HO2S perform the following:
* A code clear with a scan tool, regardless of whether or not a DTC is set
* HO2S heater resistance learn reset with a scan tool, where available
Perform the above in order to reset the HO2S resistance learned value and avoid possible HO2S failure.
Notice: Refer to Heated Oxygen and Oxygen Sensor Notice.
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting.
2. Disconnect the heated oxygen sensor (HO2S) electrical connector (3) from the engine wiring harness connector (1).
Notice: Refer to Excessive Force and Oxygen Sensor Notice.
3. Using the J 39194-B, remove the HO2S from the catalytic converter.
