Catalytic Converter Replacement - Right Side (6.0L Engine)

Catalytic Converter Replacement - Right Side (6.0L Engine)

Removal Procedure

1. Disconnect the battery ground cable from the battery. Refer to Battery Negative Cable Disconnection and Connection (Service and Repair) .




Caution: Refer to Exhaust Service Caution (Service Precautions) .
Caution: Refer to Protective Goggles and Glove Caution (Protective Goggles and Glove Warning) .

Important: The right catalytic converter to exhaust manifold retaining (3) are single use parts. They must be discarded after removal.


2. Remove the right catalytic converter to exhaust manifold retaining nuts (3).
Discard the nuts.
3. Disconnect the right catalytic converter (2) from the exhaust manifold (1).
Caution: Refer to Vehicle Lifting Caution (Service Precautions) .
4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair) .





Notice: Refer to Heated Oxygen and Oxygen Sensor Notice (Heated Oxygen and Oxygen Sensor Notice) .

5. Disconnect the right pre-catalytic converter heated oxygen sensor (HO2S) electrical connector (1).





Important: The intermediate exhaust assembly to right catalytic converter retaining nuts (3) are single use parts. They must be discarded after removal.


6. Remove the intermediate exhaust assembly to right catalytic converter retaining nuts (3).
Discard the nuts.
7. Disconnect the intermediate exhaust assembly (2) from the right catalytic converter (1).




8. Remove the right catalytic converter (1) from the vehicle.
9. Remove the right pre-catalytic converter HO2S. Refer to Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (Service and Repair) .



Installation Procedure

Caution: Refer to Exhaust Service Caution (Service Precautions) .
1. Install the right pre-catalytic converter heated oxygen sensor (HO2S) to the right catalytic converter. Refer to Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (Service and Repair) .





Important: Make sure that a new sealing ring if fitted prior to installation. Failure to comply may cause the exhaust system to perform poorly.


2. Install the right catalytic converter (1) to the vehicle.




3. Push up and forward on the right catalytic converter (2) to connect the exhaust manifold (1).
4. Lower the vehicle.

Important: Do not fully tighten the right catalytic converter to exhaust manifold retaining nuts (3) at this stage.


5. Install the right catalytic converter to exhaust manifold retaining nuts (3).
Do not fully tighten at this stage.
Caution: Refer to Vehicle Lifting Caution (Service Precautions) .
6. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair) .




7. Align the intermediate exhaust assembly (2) to the right catalytic converter (1).

Notice: Refer to Fastener Notice (Fastener Notice) .

8. Tighten the intermediate exhaust assembly to right catalytic converter retaining nuts (3).

Tighten the nuts to 40 N.m (30 lb ft).





9. Connect the right pre-catalytic converter HO2S electrical connector (1).
10. Lower the vehicle.




11. Tighten the right catalytic converter to exhaust manifold retaining nuts (1).

Tighten the nuts to 45 N.m (33 lb ft).

12. Make sure the exhaust system is clear of all other components and chassis. If the exhaust system is not clear of all the other components loosen all retaining nuts and re-align. Refer to Exhaust System Alignment (LY7 and L98 Engines) (Service and Repair) .
13. Connect the battery ground cable to the battery. Refer to Battery Negative Cable Disconnection and Connection (Service and Repair) .
14. If re-programming is required. Refer to Control Module References (Programming and Relearning) .
15. Perform diagnostic system check using diagnostic scan tool, clear all relative DTCs and inspect system for correct operation.