Catalytic Converter - LH Manifold

Catalytic Converter - LH Manifold

Removal

NOTE: Exhaust fasteners are of a torque prevailing design. Use only new fasteners with the same part number as the original. Torque values must be used as specified during reassembly to make sure of correct retention of exhaust components.

NOTE: Always install new nuts, studs and gaskets. Clean flange faces prior to new gasket installation to make sure of correct sealing.

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 engine appearance cover.

3. Remove the LH Heated Oxygen Sensor (HO2S). For additional information, refer to Electronic Engine Controls [1][2]Exploded Views.

4. Remove the 3 heat shield bolts and the heat shield.

5. Disconnect the LH Catalyst Monitor Sensor (CMS) electrical connector.

6. Remove and discard the top 3 LH catalytic converter manifold-to-cylinder head nuts.

7. Remove the exhaust Y-pipe. For additional information, refer to Exhaust Y-Pipe Exhaust Y-Pipe.

8. Remove and discard the lower 3 LH catalytic converter manifold-to-cylinder head nuts.
- Remove the LH catalytic converter manifold and discard the gasket.

9. Remove and discard the 6 LH catalytic converter manifold-to-cylinder head studs.

Installation

1. Install 6 new LH catalytic converter manifold-to-cylinder head studs.
- Tighten to 12 Nm (106 lb-in).

2. Install a new gasket, the LH catalytic converter manifold and 3 new lower LH catalytic converter manifold-to-cylinder head nuts.
- Tighten to 25 Nm (18 lb-ft).

3. Install the 3 new upper LH catalytic converter manifold-to-cylinder head nuts.
- Tighten to 25 Nm (18 lb-ft).

4. Install the exhaust Y-pipe. For additional information, refer to Exhaust Y-Pipe Exhaust Y-Pipe.

5. Connect the LH CMS electrical connector.

6. Install the heat shield and the 3 heat shield bolts.
- Tighten to 12 Nm (106 lb-in).

7. Install the LH Heated Oxygen Sensor (HO2S). For additional information, refer to Electronic Engine Controls [1][2]Exploded Views.

8. Install the engine appearance cover.

9. Start the engine and check for exhaust leaks.