GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2001 🢒 Regal (China) 🢒 Engine 🢒 Engine Exhaust 🢒 Exhaust Manifold Replacement - Left Side

Removal Procedure
  1. Disconnect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.

    2. Object Number: 69062 Size: SH
  2. Remove the throttle body air inlet duct.
  3. Remove the right engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement - Right Side .
  4. Remove the exhaust crossover pipe nuts to the left hand exhaust manifold. Refer to Exhaust Crossover Pipe Replacement .

    5. Object Number: 96290 Size: SH
  5. Remove the left hand exhaust manifold heat shield bolts.
  6. Remove the left hand exhaust manifold heat shield.

    7. Object Number: 96301 Size: SH
  7. Remove the left hand exhaust manifold nuts.
  8. Remove the left hand exhaust manifold.
  9. Remove the left hand exhaust manifold gasket.
  10. Clean the left hand exhaust manifold to the left hand cylinder head sealing surfaces.

Installation Procedure

    Object Number: 96301 Size: SH
  1. Install the left hand exhaust manifold gasket.
  2. Install the left hand exhaust manifold.

    3. 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.

  3. Install the left hand exhaust manifold nuts.

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


    Object Number: 96290 Size: SH
  4. Install the left hand exhaust manifold heat shield.
  5. Install the left hand exhaust manifold heat shield bolts.

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

  6. Install the exhaust crossover pipe nuts to the left hand exhaust manifold. Refer to Exhaust Crossover Pipe Replacement .
  7. Install the right engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement - Right Side .

    8. Object Number: 69062 Size: SH
  8. Install the throttle body air inlet duct.
  9. Connect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.