Catalytic Converter Replacement

Removal Procedure





The three way catalytic converter is serviced by replacing the entire assembly. Always replace the gaskets at the front and rear flanges when servicing the three way catalytic converter. Never reinstall the original gasket.
1. Raise and suitably support the vehicle. Refer to Vehicle Lifting.
2. Disconnect the heated oxygen sensor wiring harness connector and retainers. Refer to Heated Oxygen Sensor (H02S) Replacement.

Notice: Refer to Catalytic Converter Movement Notice in Service Precautions.





3. Suitably support the exhaust system.
4. Remove the catalytic converter bolts.
5. Remove the catalytic converter gasket.
6. Remove the exhaust manifold pipe stud nuts.
7. Remove the three way catalytic converter.





8. Remove the exhaust manifold pipe gasket.





9. Remove the heated oxygen sensor. Refer to the Heated Oxygen Sensor (H02S) Replacement.

Installation Procedure

Notice: Refer to Fastener Notice in Service Precautions.





1. Install the heated oxygen sensor. Refer to Heated Oxygen Sensor (H02S) Replacement.





2. Install a new exhaust manifold pipe gasket.

Notice: Refer to Catalytic Converter Movement Notice in Service Precautions.





3. Install and support the three way catalytic converter.
4. Install the exhaust manifold pipe stud nuts.
^ Tighten the exhaust manifold pipe stud nuts to 35 Nm (26 ft. lbs.).





5. Install the catalytic converter gasket.
6. Install the catalytic converter bolts.
^ Tighten the catalytic converter bolts to 45 Nm (33 ft. lbs.).
7. Remove the support from the exhaust system.
8. Connect the heated oxygen sensor wiring harness connector and retainers. Refer to Heated Oxygen Sensor (H02S) Replacement.
9. Inspect the exhaust system for leaks and underbody contact.
10. Lower the vehicle.