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Home >> Cadillac >> 2013 >> Escalade Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Controls/Fuel - Hybrid (LZ1) - Repair Instructions) >> Repair Instructions >> Heated Oxygen Sensor Replacement - Bank 1 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: Locating HO2S & Components
    GM1960351Courtesy of GENERAL MOTORS COMPANY
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Unbolt the front propeller shaft from the front differential, if equipped with four wheel drive (4WD). Refer to Front Propeller Shaft Replacement .
  3. Remove the connector position assurance (CPA) retainer (4).
  4. Disconnect the engine wiring harness electrical connector (7) from the HO2S.
  5. Remove the HO2S electrical connector clip (6) from the fuel line clip.
    6. Fig 2: View Of Exhaust Sensors
    GM1960379Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Excessive Force and Oxygen Sensor Caution .

  6. Remove the HO2S (1).
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