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Home >> Chevrolet >> 2011 >> Impala LS, 3.9 M >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Controls And Fuel - 3.5L - Repair Instructions) >> Repair Instructions >> Heated Oxygen Sensor Replacement - Sensor 1 >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
CAUTION: Refer to Heated Oxygen and Oxygen Sensor Caution .
    Fig 1: View Of HO2S Electrical Connector Clip (1) & Ignition Coil Bracket
    GM1609170Courtesy of GENERAL MOTORS CORP.
  1. Remove the connector position assurance (CPA) retainer (3).
  2. Disconnect the heater oxygen sensor (HO2S) electrical connector (2).
  3. Remove the oxygen sensor electrical connector from the ignition coil bracket.
    4. Fig 2: View Of HO2S & J 39194-B
    GM1618175Courtesy of GENERAL MOTORS CORP.
  4. Remove the HO2S from the exhaust manifold.
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