Catalytic Converter Replacement - Left Side 3.5L (L66)

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
2. Remove the front lower air deflector.



3. Disconnect the O2 sensors (1, 2).
4. Remove the exhaust manifold pipe. Refer to Exhaust Manifold Pipe Replacement .
5. Remove the converter nuts.
6. Position the radiator assembly forward enough for the converter removal clearance.



7. Remove the catalytic converter.

1. Install the catalytic converter.

Notice: Refer to Fastener Notice in the Preface section.

2. Install the converter nuts.

Tighten
Tighten the nuts to 18 N·m (13 lb ft).

3. Move the radiator assembly to its original position.
4. Install the exhaust manifold pipe. Refer to Exhaust Manifold Pipe Replacement .



5. Connect the O2 sensors (1, 2).



6. Install the front lower air deflector.
7. Lower the vehicle.