GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2007 🢒 Torrent 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Exhaust Manifold Replacement - Left Side

Removal Procedure
  1. Remove the 3 nuts attaching the exhaust crossover pipe to the left exhaust manifold. Refer to Exhaust Crossover Pipe Replacement .
  2. Remove the exhaust gas recirculation (EGR) pipe. Refer to Exhaust Gas Recirculation Pipe Replacement .

    3. Object Number: 1087638 Size: SH
  3. Remove the exhaust manifold heat shield bolts (2).
  4. Remove the exhaust manifold heat shield (1).

    5. Object Number: 1087640 Size: SH
  5. Remove the exhaust manifold nuts (3).
  6. Remove the exhaust manifold (2).
  7. Remove the exhaust manifold gasket (1).

    8. Object Number: 1087641 Size: SH
  8. If necessary, remove the exhaust manifold studs.
  9. Clean the exhaust manifold and the cylinder head exhaust manifold sealing surfaces.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1087641 Size: SH
  1. If previously removed, install the exhaust manifold studs.

    2. Tighten
    Tighten the studs to 18 N·m (13 lb ft).


    Object Number: 1087640 Size: SH
  2. Install the exhaust manifold gasket (1).
  3. Install the exhaust manifold (2).
  4. Install the exhaust manifold nuts (3).

    5. Tighten
    Tighten the nuts to 16 N·m (12 lb ft).


    Object Number: 1087638 Size: SH
  5. Install the exhaust manifold heat shield (1).
  6. Install the exhaust manifold heat shield bolts (2).

    7. Tighten
    Tighten the bolts to 10 N·m (89 lb in).

  7. Install the EGR pipe. Refer to Exhaust Gas Recirculation Pipe Replacement .
  8. Install the 3 nuts attaching the exhaust crossover pipe to the left exhaust manifold. Refer to Exhaust Crossover Pipe Replacement .