Cutlass Ciera Cruiser V6-3100 3.1L MFI VIN M (1994)
Oxygen Sensor: Service and Repair
Oxygen Sensor Installation
CAUTION:
^
The Heated Oxygen Sensor (HO2S) uses a permanently attached pigtail and connector. This pigtail should not be removed from the oxygen
sensor. Damage or removal of the pigtail or connector could affect proper operation of the oxygen sensor.
^
Take care when handling the oxygen sensor. The in-line electrical connector and louvered end must be kept free off grease, dirt or other
contaminants. Also, avoid using cleaning solvents of any type. Be careful not to subject the sensor to sharp impact. A DROPPED SENSOR IS A
BAD SENSOR.
REMOVAL:
NOTICE: The HO2S may be difficult to remove when engine temperature is below 48° C (120° F). Excessive force may damage threads in
exhaust pipe.
1. Disconnect the oxygen sensor electrical connector.
2. Carefully remove the oxygen sensor.
INSTALLATION:
NOTICE: A special anti-seize compound is used on the oxygen sensor threads. The compound consists of a liquid graphite and glass beads. The
graphite will burn away, but the glass beads will remain, making the sensor easier to remove. New or service sensors will already have the
compound applied to the threads. If a sensor is removed from an engine, and, if for any reason it is to be reinstalled, the threads must have
anti-seize compound applied before reinstallation.
1. Coat the threads of the HO2S with anti-seize compound P/N 5613695, or equivalent if necessary.
2. Install the sensor in the engine, and tighten to 41 Nm (30 ft lb).
3. Connect the electrical connector.
