Catalytic Converter: Service and Repair

Removal Procedure





Replace the entire converter assembly in order to properly service the three way catalytic converter.
1. Raise and suitably support the vehicle.
2. Remove the exhaust manifold pipe nuts from the exhaust manifold pipe studs.





3. Remove the catalytic converter nuts from the exhaust pipe.
4. Remove the three-way catalytic converter.

Installation Procedure





Notice: To prevent internal damage to the flexible coupling of the catalytic converter assembly, the converter must be supported. The vertical movement at the rear of the catalytic converter assembly must not exceed 6 degrees up or down.

1. Install a new catalytic converter gasket.
2. Install a new exhaust manifold pipe gasket.
3. Position and support the new three-way catalytic converter under the vehicle.
4. Install the exhaust pipe to the three-way catalytic converter with the catalytic converter nuts. Do not tighten the nuts.





Notice: Refer to Fastener Notice in Service Precautions.

5. Install the exhaust manifold pipe nuts to the exhaust manifold pipe studs.
Tighten:
- Tighten the exhaust manifold pipe nuts to the exhaust manifold pipe stud to 35 Nm (26 ft. lbs.).
- Tighten the catalytic converter nuts to the 34 Nm (25 ft. lbs.).
6. Lower the vehicle.