GM Service Manual Online
For 1990-2009 cars only

Exhaust Muffler Replacement Single Exhaust

Removal Procedure

  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Notice: To prevent internal damage to the flexible coupling of the catalytic converter assembly, the converter must be supported. The vertical movement at the rear of the catalytic converter assembly must not exceed 6 degrees up or down.

  3. Suitably support the exhaust system.

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

  7. Object Number: 289492  Size: SH
  8. Remove the exhaust hanger insulators from the exhaust muffler with exhaust pipe and tail pipe.
  9. 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
  4. Install the catalytic converter gasket.
  5. install the catalytic converter bolts.
  6. Tighten
    Tighten the catalytic converter bolts to 45 N·m (33 lb ft).

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