GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2000 🢒 Regal 🢒 Engine 🢒 Engine Exhaust 🢒 Exhaust Muffler Replacement

Removal Procedure
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

    2. Notice: Refer to Catalytic Converter Movement Notice in the Preface section.

  2. Suitably support the exhaust system.

    3. Object Number: 372616 Size: SH
  3. Remove the catalytic converter bolts.
  4. Remove the catalytic converter gasket.

    5. Object Number: 289492 Size: SH
  5. Remove the exhaust hanger insulators from the exhaust muffler with exhaust pipe and tail pipe.
  6. Remove the exhaust muffler with exhaust pipe and tail pipe.

Installation Procedure

    Object Number: 289492 Size: SH
  1. Install and suitably support the exhaust muffler with exhaust pipe and tail pipe.
  2. Install the exhaust hanger insulators to the exhaust muffler with exhaust pipe and tail pipe.

    3. Object Number: 372616 Size: SH
  3. Install the catalytic converter gasket.

    4. 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.

  4. Install the catalytic converter bolts.

    5. Tighten
    Tighten the catalytic converter bolts to 45 N·m (33 lb ft).

  5. Remove the support from the exhaust system.
  6. Inspect the exhaust system for leaks and underbody contact.
  7. Lower the vehicle.