GM Service Manual Online
For 1990-2009 cars only
  1. Clean the exhaust manifold sealing surface.
  2. Install a NEW exhaust manifold gasket to the exhaust manifold.
  3. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 2026825  Size: SH
  4. Install the exhaust manifold (3) and tighten the NEW nuts (4) to  20 N·m (15 lb ft).
  5. Install the 2 exhaust manifold bracket bolts (2) to  20 N·m (15 lb ft).