GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2008 🢒 G8 🢒 Preface 🢒 Cautions and Notices 🢒 Exhaust Manifold Installation - Right Side

Installation Procedure

    Caution: Refer to Exhaust System Inspection Notice in the Preface section.

  1. Inspect the exhaust manifold before installation. Refer to Exhaust Manifold Cleaning and Inspection - Right Side .

    2. Object Number: 2041489 Size: SH

    Note: Make sure the sealing ring is seated correctly.

  2. Install a NEW exhaust manifold gasket (1) and NEW sealing ring (3) to the exhaust manifold (2).
  3. Install the exhaust manifold assembly (2) to the engine.

    4. Object Number: 2179329 Size: SH

    Note: Do not fully tighten the exhaust manifold to cylinder head retaining bolts (1) at this stage.

  4. Install NEW exhaust manifold to cylinder head retaining bolts (1).

    5. Notice: Refer to Fastener Notice in the Preface section.

  5. Tighten the exhaust manifold to cylinder head retaining bolts (1) working from the centre to the outside to 20 N·m (15 lb ft).

    6. Object Number: 2179328 Size: SH

    Note: Do not fully tighten the exhaust manifold to cylinder head retaining bolts (1) at this stage.

  6. Install NEW exhaust manifold to cylinder head retaining bolts (1).
  7. Tighten the exhaust manifold to cylinder head retaining bolts (1) working from the centre to the outside to 20 N·m (15 lb ft).