Catalytic Converter Replacement (V6)

Catalytic Converter Replacement (V6)

Removal Procedure





1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle Service and Repair.

2. Remove the heated oxygen sensors (HO2S). Refer to Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 Service and Repair , Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 Service and Repair , Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 Service and Repair , and Heated Oxygen Sensor Replacement - Bank 2 Sensor 2 Service and Repair.

3. Remove the exhaust hanger bolts and hanger from the transmission.

4. Remove the catalytic converter to exhaust manifold nuts (1).





5. Remove the muffler to catalytic converter nuts (1).





6. Lower the catalytic converter (3) from the vehicle.

7. Remove and discard the exhaust manifold seals (1 and 2).

Installation Procedure





1. Install a NEW exhaust manifold seal (1) into the groove in the left catalytic converter.

2. Install a NEW exhaust manifold seal (2) into the right manifold.

3. Position the catalytic converter (3) to the exhaust manifolds.





Caution:
Refer to Fastener Caution Fastener Caution.

4. Install the catalytic converter to exhaust manifold nuts (1) and tighten to 50 Nm (37 lb ft).





5. Install the muffler to catalytic converter nuts (1) and tighten to 48 Nm (35 lb ft).

6. Install the exhaust hanger bolts and hanger to the transmission and tighten to 50 Nm (37 lb ft).

7. Install the HO2S. Refer to Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 Service and Repair , Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 Service and Repair , Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 Service and Repair , and Heated Oxygen Sensor Replacement - Bank 2 Sensor 2 Service and Repair.