Catalytic Converter - LH Manifold

Catalytic Converter - 3.0L LH Manifold

Removal

1. With the vehicle in NEUTRAL, position it on a hoist.

2. Remove and discard the oil filter.

3. Remove the oil level indicator and tube.

4. Remove the Heated Oxygen Sensor (HO2S) and the catalyst monitor sensor.

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

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

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

8. Loosen the 2 LH catalytic converter manifold bracket bolts.

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

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

11. Clean and inspect the catalytic converter manifold.

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. Tighten the 2 LH catalytic converter manifold bracket 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 in 3 stages:
- Stage 1: Tighten the passenger side nut to 5 Nm (44 lb-in).

- Stage 2: Tighten the driver side nut to 40 Nm (30 lb-ft).

- Stage 3: Tighten the passenger side nut to 40 Nm (30 lb-ft).

10. Install the HO2S and the catalyst monitor sensor.

11. Install the oil level indicator and tube.

12. Install a new oil filter.
- Tighten to 5 Nm (44 lb-in) and then rotate an additional 180 degrees.