Catalytic Converter - RH Manifold

Catalytic Converter - 3.0L RH Manifold

Special Tool(s):

Material:

Removal

1. NOTE: Always install new fasteners and gaskets. Clean flange faces prior to new gasket installation to make sure of proper sealing.

With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Maintenance/Service and Repair.





2. If equipped, remove the 7 screws and the underbody cover.
3. Remove the exhaust flexible pipe.
4. Remove the exhaust gas recirculation (EGR) tube. For additional information, refer to Emission Control Systems.
5. Disconnect the heated oxygen sensor (HO2S) and catalyst monitor sensor (CMS) electrical connectors.
6. Remove the 2 bolts and the RH catalytic converter manifold shield.
7. Remove the 2 RH catalytic converter manifold shield bracket bolts and the shield bracket.
8. Loosen the 2 RH catalytic converter manifold bracket bolts.
9. Remove the 6 RH catalytic converter manifold nuts and remove it from the vehicle.
^ Discard the 6 RH catalytic converter manifold nuts and gasket.
10. Remove the 6 RH catalytic converter manifold studs and discard.

11. NOTE: If installing a new RH catalytic converter manifold, remove and save the H02S and CMS for installation in the new RH catalytic converter manifold.





Using the special tool, remove the RH catalytic converter manifold H02S and CMS.

Installation

1. CAUTION: If the warpage is greater than 0.76 mm (0.03 inch), replace the RH catalytic converter manifold.

Inspect the RH catalytic converter manifold for warped across the manifold flange area.

2. NOTE: Apply anti-seize lubricant to the threads of the H02S and CMS before installation.





If installing a new RH catalytic converter manifold, install the H02S and CMS using the special tool.
^ Tighten to 47 Nm (35 ft. lbs.).
3. Clean the mating surfaces of the cylinder head and the RH catalytic converter manifold.
4. Install the 6 new RH catalytic converter manifold studs.
^ Tighten to 11 Nm (8 ft. lbs.).
5. Position a new RH catalytic converter manifold gasket on the studs.

6. CAUTION: Failure to tighten the catalytic converter 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 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 in 2 stages.





Position the RH 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.).
7. Install the shield bracket and the 2 RH catalytic converter manifold shield bracket bolts.
^ Tighten to 20 Nm (15 ft. lbs.).
8. Tighten the 2 RH catalytic converter manifold bracket bolts.
^ Tighten to 20 Nm (15 ft. lbs.).
9. Position the RH catalytic converter manifold shield and install the 2 bolts.
^ Tighten to 10 Nm (89 inch lbs.).
10. Connect the H02S and CMS electrical connectors.
11. Install the EGR tube. For additional information, refer to Emission Control Systems.
12. Install the exhaust flexible pipe.





13. If equipped, install the 7 screws and the underbody cover.