GM Service Manual Online
For 1990-2009 cars only

Exhaust Muffler Replacement With NB5

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.

  2. Object Number: 2075491  Size: SH
  3. Remove the three way catalytic converter to muffler pipe nuts (1).

  4. Object Number: 1861484  Size: SH
  5. With the aid of an assistant, separate the rubber insulators from the exhaust underbody hangers (1).
  6. With the aid of an assistant, remove the muffler assembly from exhaust flexible pipe and the vehicle.

Installation Procedure


    Object Number: 1861484  Size: SH
  1. With the aid of an assistant, install the muffler assembly to the vehicle and the exhaust flexible pipe.
  2. With the aid of an assistant, install the rubber insulators to the exhaust underbody hangers (1).
  3. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 2075491  Size: SH
  4. Install the three way catalytic converter to muffler piper nuts (1) and tighten to 50 N·m (37 lb ft).
  5. Lower the vehicle.

Exhaust Muffler Replacement With NEA or NEB

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.

  2. Object Number: 2075491  Size: SH
  3. Remove the three way catalytic converter to muffler pipe nuts (1).

  4. Object Number: 1861487  Size: SH
  5. With the aid of an assistant, separate the rubber insulators from the exhaust underbody hangers (1, 2, and 3).
  6. With the aid of an assistant, remove the muffler assembly from exhaust flexible pipe and the vehicle.

Installation Procedure


    Object Number: 1861487  Size: SH
  1. With the aid of an assistant, install the muffler assembly to the vehicle and the exhaust flexible pipe.
  2. With the aid of an assistant, install the rubber insulators to the exhaust underbody hangers (1, 2, and 3).
  3. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 2075491  Size: SH
  4. Install the three way catalytic converter to muffler pipe nuts (1) and tighten to 50 N·m (37 lb ft).
  5. Lower the vehicle.

Exhaust Muffler Replacement With LLT

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Remove the three way catalytic converter to muffler nuts.

  3. Object Number: 2087368  Size: SH
  4. With the aid of an assistant, separate the rubber insulators from the exhaust underbody hangers (1, 2, and 3).
  5. With the aid of an assistant, remove the muffler assembly from exhaust flexible pipe and the vehicle.

Installation Procedure


    Object Number: 2087368  Size: SH
  1. With the aid of an assistant, install the muffler assembly to the vehicle and the exhaust flexible pipe.
  2. With the aid of an assistant, install the rubber insulators to the exhaust underbody hangers (1, 2, and 3).
  3. Caution: Refer to Fastener Caution in the Preface section.

  4. Install the three way catalytic converter to muffler nuts and tighten to 50 N·m (37 lb ft)
  5. Lower the vehicle.