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Home >> Pontiac >> 2007 >> G6 Base, 2.4 B >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 2.4L - Introduction (2 Of 2) >> Repair Instructions >> Heated Oxygen Sensor 2 Replacement >> Installation Procedure

Installation Procedure

IMPORTANT: A special anti-seize compound is used on the HO2S threads. The compound consists of a liquid graphite and glass beads. The graphite will burn away but the glass beads will remain, making the sensor easier to remove. New or service sensors already have the compound applied to the threads. If the sensor is removed and is to be reinstalled, the threads must be coated with an anti-seize compound before reinstallation.
    Fig 1: Identifying HO2S Sensor
    GM1523745Courtesy of GENERAL MOTORS CORP.
  1. If reinstalling the old HO2S, coat the threads with anti-seize compound GM P/N 12377953 or equivalent.
  2. Using the J 39194  , install the HO2S. See Special Tools .

    Tighten:  Tighten the HO2S to 41 N.m (30 lb ft).

    3. Fig 2: Identifying CPA Retainer & HO2S Electrical Connector
    GM1523744Courtesy of GENERAL MOTORS CORP.
  3. Connect the HO2S electrical connector (2).
  4. Install the CPA retainer (1).
  5. Lower the vehicle.
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