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Installation Procedure

    Fig 1: Throttle Body, Bolts & Gasket
    GM1408854Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: DO NOT use the throttle body gasket again. Install a NEW gasket during assembly.
  1. Install the throttle body gasket (509) to the intake manifold. Align the locating tab of the gasket with the notch in the manifold.
  2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the throttle body (508) and bolts (538).

    Tighten:  Tighten the throttle body bolts to 10 N.m (89 lb in).

  4. Install the electrical wire harness connector from the throttle body.
  5. Install the air intake duct to the throttle body. Refer to Air Cleaner Assembly Replacement .