Contents: Removal procedure ↧ Installation procedure ↧
Necessary equipment
DW170-010 Oxygen Sensor Removal and Installation Tool
Removal procedure
1. Disconnect the negative battery cable.
Note: The oxygen sensor has a non-detachable flexible lead and connector. Do not remove the flexible lead from the oxygen sensor. Damage to or removal of the flexible lead or connector will affect the operation of the oxygen sensor. Handle the oxygen sensor with care. Do not drop the oxygen sensor.
2. Disconnect the oxygen sensor diagnostic connector.

Caution! Cool the engine before removing the oxygen sensor. Removing the oxygen sensor on a hot engine may damage the threads in the exhaust manifold.
3. Using the oxygen sensor removal and installation tool DW170-010, carefully remove the rear control oxygen sensor with the electric heater.

Installation procedure
Important: A special anti-seize compound is used on the oxygen sensor threads. This compound consists of liquid graphite and glass beads. The graphite burns out, but the glass beads remain and make it easier to remove the sensor. New or repaired sensors already have the compound applied to the threads. If the sensor is removed from the engine or reinstalled, then it is imperative to apply the anti-seize compound to the threads before reinstalling.
1. If necessary, coat the threads of the heated oxygen sensor with anti-seize lubricant.
2. Using the oxygen sensor removal and installation tool DW170-010, install the rear control oxygen sensor with electric heater into the exhaust pipe
Tighten
Tighten the heated oxygen sensor to 50 N·m (37 lb-ft).

3. Connect the rear heated oxygen sensor connector.
4. Connect the negative battery cable.

The material was created based on information from the website CHEVYMAN.RU
