Removal Procedure
Notice: The Heated Oxygen Sensor (HO2S) and the Oxygen Sensor use a permanently attached pigtail and connector. Do not remove this pigtail from the Heated Oxygen Sensor. Damage or the removal of the pigtail or the connector could affect the proper operation of the sensor.
Take care when handling the HO2S and the O2S. Keep the in-line electrical connector and the louvered end free of grease, dirt, or other contaminants. Also avoid using cleaning solvents of any type. Do not drop the HO2S or the O2S. Do not roughly handle the HO2S or the O2S.- Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
- Disconnect the electrical connector.
- Remove the heated oxygen sensor (HO2S).
Notice: The use of excessive force may damage the threads in the exhaust manifold/pipe.
Important: If the engine temperature is not above 48°C (120°F), the oxygen sensor will be difficult to remove.
Installation Procedure
- Install the heated oxygen sensor (HO2S).
- Connect the electrical connector.
- Lower the vehicle.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
Notice: A special anti-seize compound is used on the oxygen sensor threads. New service sensors should already have the compound applied to the threads. Coat the threads of a reused sensor with anti-seize compound P/N 5613695 or equivalent.
Tighten
Tighten the HO2S 2 to 41 N·m (30 lb ft).
