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Installation Procedure

    Fig 1: Locating HO2S
    GM1949886Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    A special anti-seize compound is used on the oxygen sensor threads. New service sensors should already have the compound applied to the threads. Coat the threads of a reused sensor with anti-seize compound P/N 5613695 or equivalent.

  1. Install the HO2S (1) to the exhaust crossover pipe assembly and tighten to 42 N.m (31 lb ft).
    2. Fig 2: HO2S Electrical Connector
    GM1949882Courtesy of GENERAL MOTORS COMPANY
  2. Connect the HO2S electrical connector (1).
  3. Lower the vehicle.
  4. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
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