Montana AWD V6-3.4L VIN E (2004)
Catalytic Converter: Service and Repair
Catalytic Converter Replacement
Removal Procedure
Replace the entire converter assembly in order to properly service the 3way catalytic converter.
1. Raise and suitably support the vehicle.
2. Disconnect the Heated Oxygen Sensor connector. Refer to Heated Oxygen Sensor (HO2S) 1 Replacement.
3. Remove the exhaust manifold pipe nuts from the exhaust manifold pipe studs.
4. Remove the catalytic converter nuts from the exhaust pipe.
5. Remove the 3-way catalytic converter.
Installation Procedure
1. Install a new catalytic converter gasket.
Notice: To prevent internal damage to the flexible coupling of the catalytic converter assembly, the converter must be supported. The vertical