Catalytic Converter: Service and Repair
Catalytic Converter Removal and InstallationRemoval
1. Disconnect the negative battery cable.
2. Disconnect the oxygen sensor electrical connector.
3. Remove the exhaust manifold cover with the bolts.
4. Remove the catalytic converter upper flange nuts.
5. Remove the exhaust front pipe mounting bracket bolt.
6. Remove the nuts from the exhaust front pipe-to-catalytic converter flange.
7. Remove the catalytic converter and the gasket.
8. Clean the sealing surfaces on the exhaust front pipe flange and the exhaust manifold.
9. Check the exhaust front pipe and the exhaust manifold for holes, damage, open seams or other deterioration which could permit exhaust fumes to seep into the passenger compartment.
Installation
1. Install the catalytic converter and the gasket to the exhaust front pipe flange.
Tighten: Tighten the exhaust front pipe-to-catalytic converter nuts to 40 Nm (30 ft. lbs.).
Tighten the exhaust front pipe-to-cylinder block bolt to 50 Nm (37 ft. lbs.).
2. Install the catalytic converter to exhaust manifold nuts and the gasket.
Tighten: Tighten the catalytic converter to exhaust manifold nuts to 40 Nm (30 ft. lbs.).
3. Install the exhaust manifold converter bolts.
Tighten: Tighten the exhaust manifold cover bolts to 15 Nm (11 ft. lbs.).
4. Connect the oxygen sensor electrical connector.
5. Connect the negative battery cable.