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Home >> Chevrolet >> 2004 >> Tracker RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 2.0L (Introduction) >> Repair Instructions >> Heated Oxygen Sensor Replacement - Position 2 (w/o PUP-TWC) >> Removal Procedure

Removal Procedure

NOTE: Refer to Heated Oxygen and Oxygen Sensor Notice in Cautions and Notices.
IMPORTANT: The heated oxygen sensor (HO2S) may be difficult to remove at temperatures above 48°C (120°F). In order to prevent damage to any threads in the exhaust manifold, allow the exhaust system to cool down before attempting to remove the HO2S.
    CAUTION: Refer to Vehicle Lifting Caution Vehicle Lifting Caution in Cautions and Notices.
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Pull the HO2S 2 electrical connector (1) through the floor pan.
  3. Disconnect the HO2S 2 (2) electrical connector.
  4. Remove the HO2S 2 (2) from the exhaust pipe.
  5. Fig 1: View Of HO2S 2 & Electrical Connector
    GM451371Courtesy of GENERAL MOTORS CORP.