GM Service Manual Online
For 1990-2009 cars only

Exhaust Muffler Replacement Left Side

Removal Procedure

  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Support the left-hand exhaust muffler and the exhaust pipe.

  3. Object Number: 33031  Size: SH

    Important: The cut(s) must be made on the straight pipe closest to the curve coming out of the left-side exhaust muffler (2). Do not cut on the curve or bend.

  4. Cut the exhaust pipe closest to the left-hand exhaust muffler bend (1).

  5. Object Number: 33056  Size: SH
  6. Remove the exhaust muffler rear hanger insulators from the exhaust muffler.
  7. Remove the exhaust muffler and the exhaust pipe.

Installation Procedure


    Object Number: 33034  Size: SH
  1. Install the exhaust muffler inlet pipe clamp to the end of the exhaust muffler. Do not tighten the clamp.

  2. Object Number: 33047  Size: SH
  3. Install the exhaust muffler.

  4. Object Number: 33056  Size: SH
  5. Install the exhaust muffler rear hanger insulators to the exhaust muffler.
  6. 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.

  7. Tighten the exhaust muffler inlet pipe clamp nuts.
  8. Tighten
    Tighten the exhaust muffler inlet pipe clamp nuts to 50 N·m (37 lb ft).

  9. Lower the vehicle.

Exhaust Muffler Replacement Right Side

Removal Procedure

  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Support the exhaust pipe and the exhaust muffler.
  3. Cut the exhaust pipe at the exhaust muffler in front of the weld.

  4. Object Number: 33047  Size: SH
  5. Remove the exhaust muffler rear hanger insulators from the exhaust muffler.
  6. Remove the exhaust muffler.

Installation Procedure


    Object Number: 33038  Size: SH
  1. Install the exhaust muffler inlet pipe clamp to the end of the exhaust muffler. Do not tighten the clamp.
  2. Install the exhaust muffler.

  3. Object Number: 33047  Size: SH
  4. Install the exhaust muffler rear hanger insulators to the exhaust muffler.
  5. 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.

  6. Tighten the exhaust muffler inlet pipe clamp nuts.
  7. Tighten
    Tighten the exhaust muffler inlet pipe clamp nuts to 50 N·m (37 lb ft).

  8. Lower the vehicle.