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 (8 lb-ft).
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. CAUTION: 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.

CAUTION: 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 (15 lb-ft).
^ Stage 2: Tighten to 20 Nm (15 lb-ft).





6. Install the shield bracket and the 2 LH catalytic converter manifold shield bracket bolts.
^ Tighten to 20 Nm (15 lb-ft).
7. Tighten the 2 LH catalytic converter manifold bracket bolts.
^ To install, tighten to 20 Nm (15 lb-ft).
8. Position the LH catalytic converter manifold shield and install the 4 bolts.
^ Tighten to 10 Nm (89 lb-inch).
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-inch).
^ 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-inch) and then rotate an additional 180 degrees.