S15/T15 Sonoma P/U 2WD L4-2.2L VIN 5 Flex Fuel (2001)
Oxygen Sensor: Service and Repair
Oxygen Sensor (O2S) Replacement
TOOLS REQUIRED
J 29533-A/BT-8127 Oxygen Sensor Wrench
REMOVAL PROCEDURE
NOTE: 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.
When the engine temperature is below 48°C (120°F), the oxygen sensor (O2S) may be difficult to remove. Excessive force may damage the threads in
the exhaust manifold or the exhaust pipe.
1. Turn OFF the ignition.
CAUTION: Refer to Vehicle Lifting Caution in Service Precautions.
2. Raise the vehicle.
3. Remove the electrical connector.
4. Carefully back out the oxygen sensor and seal using the J 29533-A/BT-8127
INSTALLATION PROCEDURE
IMPORTANT: A special anti-seize compound is used on the oxygen sensor (O2S) threads. The compound consists of liquid graphite and glass
