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Home >> Cadillac >> 2013 >> Escalade Hybrid, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Engine Controls/Fuel - 5.3L, 6.0L, 6.2L - Repair Instructions) >> Repair Instructions >> Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (1500 Series) >> Installation Procedure

Installation Procedure

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NOTE:

A special anti-seize compound is used on the HO2S threads. The compound consists of liquid graphite and glass beads. The graphite tends to burn away, but the glass beads remain, making the sensor easier to remove. New, or service replacement sensors already have the compound applied to the threads. If the sensor is removed from an exhaust component and if for any reason the sensor is to be reinstalled, the threads must have anti-seize compound applied before the reinstallation.

    Fig 1: View Of Catalytic Converter Assembly HO2S's
    GM1704008Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Component Fastener Tightening Caution .

  1. If reinstalling the old sensor, coat the threads with anti-seize compound GM P/N 12377953, or equivalent.
  2. Install the HO2S (5) and tighten to 42 N.m (31 lb ft).
    3. Fig 2: View Of Left Rear CPA Retainer & Engine Wiring Harness Electrical Connector
    GM1704005Courtesy of GENERAL MOTORS COMPANY
  3. Connect the HO2S electrical connector to the engine wiring harness electrical connector (3).
  4. Install the CPA retainer (1).
  5. Lower the vehicle.
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