Removal Procedure
- Ignition OFF.
- Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection.
- Remove the engine cover. Refer to Engine Cover Replacement.
- Disconnect the heated oxygen sensor (HO2S) electrical connector (1).
- Remove the HO2S (2) from the exhaust manifold.
Warning: Refer to Exhaust Service Warning in the Preface section.
Warning: Refer to Protective Goggles and Glove Warning in the Preface section.
Caution: 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.Caution: Remove oxygen sensors with the engine temperature above 48°C (120°F). Otherwise the oxygen sensors may be difficult to remove.
Warning: Refer to Battery Disconnect Warning in the Preface section.
Caution: Handle the oxygen sensors carefully in order to prevent damage to the component. Keep the electrical connector and the exhaust inlet end free of contaminants. Do not use cleaning solvents on the sensor. Do not drop or mishandle the sensor.
Installation Procedure
- Install the HO2S (2) into the exhaust manifold and tighten to 42 N·m (31 lb ft).
- Connect the HO2S electrical connector (1).
- Install the engine cover. Refer to Engine Cover Replacement.
- Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
Caution: 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.
