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Home >> Cadillac >> 2004 >> CTS Base, 3.2 N >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Engine Controls - 5.7L - Introduction) >> Repair Instructions >> Heated Oxygen Sensor (HO2S) Replacement Bank 2 Sensor 1 >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
    NOTE: Refer to Heated Oxygen and Oxygen Sensor Notice in Cautions and Notices.
    NOTE: Refer to Excessive Force and Oxygen Sensor Notice in Cautions and Notices.
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Disconnect the heated oxygen sensor (HO2S) electrical connectors. Note the harness routing and retainers for reassembly.
  3. Remove the right side catalytic converter. Refer to Catalytic Converter Replacement - Right (LA3, LY9) , Catalytic Converter Replacement - Right (LY7) or Catalytic Converter Replacement - Right (LS6) in Engine Exhaust.
    4. Fig 1: Removing HO2S
    GM1413527Courtesy of GENERAL MOTORS CORP.
  4. Remove the HO2S (1).
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