Catalytic Converter - LH Manifold

Catalytic Converter - 3.0L LH Manifold

Removal

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Jacking and Lifting Service and Repair.

2. Remove the 6 retainers and the passenger side splash shield.





3. Remove the LH Heated Oxygen Sensor (HO2S). For additional information, refer to Electronic Engine Controls - 3.0L (4V) Heated Oxygen Sensor (HO2S).

4. Rotate the accessory drive belt tensioner counterclockwise and remove the accessory drive belt.





5. Disconnect the A/C compressor electrical connector.





6. Remove the 3 bolts and position the A/C compressor aside.





7. Remove the 3 bolts and the LH catalytic converter heat shield.

8. Remove exhaust Y-pipe. For additional information, refer to Exhaust Y-Pipe - 3.0L Exhaust Y-Pipe.

9. Remove and discard the 6 LH catalytic converter manifold nuts.

10. Remove the LH catalytic converter manifold from the vehicle.
- Discard the gasket.

11. Remove and discard the 6 LH catalytic converter manifold studs.

12. Clean and inspect the LH catalytic converter manifold. For additional information, refer to Engine System - General Information Exhaust Manifold Cleaning and Inspection.

Installation

1. Install the 6 new LH catalytic converter manifold studs.
- Tighten to 11 Nm (97 lb-in).

2. NOTICE: Failure to tighten the catalytic converter nuts to specification before installing the exhaust Y-pipe will cause the converter to develop an exhaust leak.

NOTICE: Failure to tighten the catalytic converter nuts to specification a second time will cause the converter to develop an exhaust leak.

Using a new gasket, install the LH catalytic converter and the 6 nuts. Tighten in 2 stages in the sequence shown.

- Stage 1: Tighten to 25 Nm (18 lb-ft).

- Stage 2: Tighten to 25 Nm (18 lb-ft).





3. Install the exhaust Y-pipe. For additional information, refer to Exhaust Y-Pipe - 3.0L Exhaust Y-Pipe.

4. Install the LH catalytic converter heat shield and the 3 bolts.
- Tighten to 10 Nm (89 lb-in).

5. Position the A/C compressor and install the 3 bolts.
- Tighten to 25 Nm (18 lb-ft).





6. Connect the A/C compressor electrical connector.





7. Rotate the accessory drive belt tensioner counterclockwise and install the accessory drive belt.





8. Install the LH HO2S. For additional information, refer to Electronic Engine Controls - 3.0L (4V) Heated Oxygen Sensor (HO2S).

9. Install the passenger side splash shield and the 6 retainers.