Catalytic Converter Replacement - Left Side (LS7)

Fig 1: Catalytic Converter - Left Side (LS7)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
Preliminary Procedure Remove the engine mount-to-engine mount bracket nuts. Refer to Engine Mount Replacement - Left Side and Engine Mount Replacement - Right Side . Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
1	Intermediate Pipe Refer to Intermediate Pipe Replacement .
2	Exhaust Pipe Seal
3	Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 Refer to Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 .
4	Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2 Refer to Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 .
5	Catalytic Converter-to-Exhaust Manifold Nut (Qty: 4) CAUTION: Refer to Fastener Caution . Tighten: 50 N.m (37 lb ft)
6	Left Side Catalytic Converter Tip: The engine will need to be raised for the catalytic converter to clear the exhaust manifold mounting studs.
7	Exhaust Manifold Pipe Gasket Tip: Improperly installed and/or leaking exhaust gaskets may affect vehicle emissions and/or On-Board Diagnostics (OBD) II system performance.