GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1997 🢒 Regal 🢒 Engine 🢒 Engine Mechanical - 3.1L and 3.4L 🢒 Exhaust Manifold Installation

Exhaust Manifold Installation Left Side


    Object Number: 54301 Size: SH
  1. Install the exhaust manifold gasket.
  2. Install the exhaust manifold.
  3. Install the exhaust manifold nuts.

    4. Tighten
    Tighten the exhaust manifold nuts to 16 N·m (12 lb ft).

    Refer to

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

    in General Information.


    Object Number: 60831 Size: SH
  4. Install the exhaust manifold heat shield.
  5. Install the exhaust manifold heat shield nuts.

    6. Tighten
    Tighten the exhaust manifold heat shield nuts to 10 N·m (89 lb in).

Exhaust Manifold Installation Right Side


    Object Number: 58885 Size: SH
  1. Install the exhaust manifold gasket.
  2. Install the exhaust manifold.
  3. Install the exhaust manifold nuts.

    4. Tighten
    Tighten the exhaust manifold nuts to 16 N·m (12 lb ft).

    Refer to

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

    in General Information.


    Object Number: 58883 Size: SH
  4. Install the exhaust manifold heat shield.
  5. Install the exhaust manifold heat shield nuts.

    6. Tighten
    Tighten the exhaust manifold heat shield nuts to 10 N·m (89 lb in).