FixVault

Removal Procedure

IMPORTANT: The 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.
  1. Disconnect the HO2S 2 electrical connector.
  2. CAUTION: Refer to Vehicle Lifting Caution in Cautions and Notices.
  3. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  4. Remove the HO2S 2 (1) from the exhaust pipe below the catalytic converter.
  5. Fig 1: View Of HO2S 2 Electrical Connector
    GM677336Courtesy of GENERAL MOTORS CORP.


IMPORTANT: The 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 in Cautions and Notices.
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Disconnect the HO2S 2 electrical connector.
  3. Remove the HO2S 2 (1) from the exhaust pipe below the catalytic converter (2).
  4. Fig 1: Locating O2 Sensor
    GM472422Courtesy of GENERAL MOTORS CORP.