Removal Procedure
Notice: 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.
Important:
• Bank 2 on the LH2 engine in this vehicle is the left side of the engine while sitting in the driver seat. • Sensor 2 is the second sensor down stream from the engine towards the rear of the vehicle. • 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.
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
- Disconnect the oxygen sensor electrical connector.
- Note the wire routing and attachment points for reassembly.
- Remove the oxygen sensor from the exhaust pipe.
Installation Procedure
- Install the oxygen sensor to the exhaust pipe.
- Route and attach the wiring as noted during disassembly.
- Connect the oxygen sensor 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.
Tighten
Tighten the front heated oxygen sensor (HO2S) to 42 N·m (31 lb ft).
