GM Service Manual Online
For 1990-2009 cars only

    Object Number: 2027658  Size: SH

    Note: Ensure that the turbocharger surface and the exhaust manifold surface are clear of old gasket material and rust.

  1. Install a NEW turbocharger gasket (3).
  2. Install the turbocharger (2).
  3. Caution: Refer to Fastener Caution in the Preface section.

  4. Install 2 NEW turbocharger lower nuts (4) and tighten to  34 N·m (26 lb ft).
  5. Install the NEW turbocharger upper nut (1) and tighten to  34 N·m (26 lb ft).