LaCrosse V6-3.8L (2009)
3. Install the oxygen sensor wiring harness (3) to the catalytic converter heat shield.
4. Install the catalytic converter. Refer to Catalytic Converter Replacement (V6) (See: Service and Repair)Catalytic Converter Replacement (LS4)
(See: Service and Repair).
5. Remove the support from the exhaust system.
6. Inspect the exhaust system for leaks and underbody contact.
7. Lower the vehicle.