Removal Procedure
WARNING: This page is about a different car, the 2005 Buick LaCrosse and 2005 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
The muffler is serviced as a complete assembly and cannot be serviced separately.
- Remove the catalytic converter. Refer to Catalytic Converter Replacement (RPOs L26/L32) or Catalytic Converter Replacement (LY7) .
- Support the exhaust system.
- With the aid of an assistant, remove the exhaust system from the exhaust hangers.
- Clean the catalytic converter and the muffler mating surfaces.