Cobalt L4-2.0L SC VIN P (2005)
Catalytic Converter: Service and Repair
Catalytic Converter Replacement (LSJ)
Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting.
2. Remove the post catalytic converter heated oxygen sensor (HO2S).
3. Remove the catalytic converter pipe-to-exhaust manifold nuts.
4. Carefully separate the converter pipe from the exhaust manifold.
5. Lower the converter pipe to rest on the rear crossmember of the front suspension frame.
6. Remove the catalytic converter pipe-to-exhaust extension pipe nuts.
7. Position the converter pipe forward and support the pipe.
8. Move the extension pipe rearward and down in order to separate the pipes.
9. Remove the catalytic converter pipe assembly from the vehicle.
10. If the exhaust gaskets have remained on the vehicle, remove the gaskets from the exhaust manifold and from the exhaust extension pipe, and
discard the gaskets.
11. Clean the flange surfaces of any remaining gasket material.
Installation Procedure
