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 Vehicle Jacking and Lifting.

2. Remove the oil level indicator and tube. For additional information, refer to Engine.

3. Disconnect the Heated Oxygen Sensor (HO2S) and the Catalyst Monitor Sensor (CMS) electrical connectors.

4. Remove the 2 LH catalytic converter-to-exhaust flexible pipe nuts.
- Discard the gasket and the 2 nuts.

5. Remove the 4 bolts and the LH catalytic converter manifold shield.

6. Remove the 2 LH catalytic converter manifold shield bracket bolts and the shield bracket.

7. Remove the 2 LH catalytic converter manifold bracket bolts and bracket.

8. Remove the 6 nuts and the LH catalytic converter manifold.
- Discard the 6 LH catalytic converter manifold nuts and the gasket.

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

10. Clean and inspect the catalytic converter manifold. For additional information, refer to Engine.

Installation

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

2. Position a new LH catalytic converter manifold gasket on the studs.

3. Position the LH catalytic converter manifold and finger-tighten the 6 new nuts.

4. Install a new gasket and finger-tighten 2 new nuts at the LH catalytic converter-to-exhaust flexible pipe.

5. NOTICE: Failure to tighten the catalytic converter manifold nuts to specification before installing the converter bracket bolts will cause the converter to develop an exhaust leak.

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

NOTE: Make sure to tighten the nuts in the sequence shown in 2 stages.
Position the LH catalytic converter manifold and tighten the 6 new nuts in the sequence shown, in 2 stages.
- Stage 1: Tighten to 20 Nm (177 lb-in).

- Stage 2: Tighten to 20 Nm (177 lb-in).





6. Install the shield bracket and the 2 LH catalytic converter manifold shield bracket bolts.
- Tighten to 20 Nm (177 lb-in).

7. Install the LH catalytic converter manifold bracket and 2 bolts.
- To install, tighten to 20 Nm (177 lb-in).

8. Position the LH catalytic converter manifold shield and install the 4 bolts.
- Tighten to 10 Nm (89 lb-in).

9. Tighten the 2 new LH catalytic converter-to-exhaust flexible pipe nuts.
- Tighten to 40 Nm (30 lb-ft).

10. Connect the HO2S and the CMS electrical connectors.

11. Install the oil level indicator and tube. For additional information, refer to Engine.