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Installation Procedure

    Fig 1: Identifying Exhaust Manifold Heat Shield Bolts - Left Side
    GM1861578Courtesy of GENERAL MOTORS COMPANY
  1. Install the exhaust manifold heat shield, sliding the shield down over the HO2S pigtail.
  2. CAUTION:

    Refer to Fastener Caution .

  3. Install the exhaust manifold heat shield bolts (1) and tighten to 10 N.m (89 lb in).
  4. Fig 2: Identifying Engine Wiring Harness Electrical Connector
    GM1858010Courtesy of GENERAL MOTORS COMPANY
  5. Connect the engine wiring harness electrical connector (2) to the HO2S electrical connector (3).
  6. Install the HO2S electrical connector retainer to the wiring harness clip (1).
  7. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .