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 (CMS).
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 manifold.

Installation

1. Install the 6 new LH catalytic converter manifold studs.
^ Tighten to 11 Nm (8 ft. lbs.).

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 the 2 nuts at the LH catalytic converter-to-exhaust flexible pipe.
^ Tighten to 40 Nm (30 ft. lbs.).

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 ft. lbs.).
^ Stage 2: Tighten to 20 Nm (15 ft. lbs.).





6. Install the shield bracket and the 2 LH catalytic converter manifold shield bracket bolts.
^ Tighten to 20 Nm (15 ft. lbs.).

7. Tighten the 2 LH catalytic converter manifold bracket bolts.
^ To install, tighten to 20 Nm (15 ft. lbs.).

8. Position the LH catalytic converter manifold shield and install the 4 bolts.
^ Tighten to 10 Nm (89 inch lbs.).

9. Install the 2 LH catalytic converter-to-exhaust flexible pipe nuts in 3 stages:
^ Stage 1: Tighten the passenger side nut to 5 Nm (44 inch lbs.).
^ Stage 2: Tighten the driver side nut to 40 Nm (30 ft. lbs.).
^ Stage 3: Tighten the passenger side nut to 40 Nm (30 ft. lbs.).

10. Install the heated oxygen sensor (HO2S) and the catalyst monitor sensor (CMS).
11. Install the oil level indicator and tube.
12. Install a new oil filter.
^ Tighten to 5 Nm (44 inch lbs.) and then rotate an additional 180 degrees.