Catalytic Converter: Service and Repair
Special Tools:
Removal
1. Disconnect the negative battery cable.
2. Remove the bolts and engine roll restrictor.
3. Remove the bolt, ground strap, and nut.
4. Raise and support the vehicle.
5. Remove the splash shield and the air deflector.
6. Disconnect the Catalyst Monitor Sensor (CMS) electrical connectors.
7. Remove the nut and position the heat shield out of the way.
8. Remove the nut.
9. Remove the nut.
10. Note: Support the exhaust with mechanic's wire.
Remove the nuts and disconnect the three-way catalytic converter from the dual converter Y-pipe.
11. Lower the vehicle.
12. Remove the nuts.
13. Remove the bolt.
14. Using the special tools, raise the front of the engine.
15. Raise the vehicle.
16. Remove the bolt.
17. CAUTION: The sharp edges on the converter can cut the CV joint boot. Make sure to protect the half-shaft boot with a suitable covering before removing the converter assembly.
Remove the dual Y-pipe converter assembly.
18. Remove the gaskets and, if necessary, the Catalyst Monitor Sensors (CMS).
- Discard the gaskets.
Installation
1. Install the new gaskets and, if removed, install the Catalyst Monitor Sensors (CMS).
2. Position the dual converter Y-pipe and loosely start the front nuts and the rear bolt.
3. Tighten the bolt.
4. Lower the vehicle.
5. Tighten the nuts.
6. Lower the engine and remove the special tools.
7. Tighten the bolt.
8. Install the engine roll restrictor and tighten the bolts.
9. Position the heat shield. Install the ground strap and tighten the bolt and nut.
10. Raise the vehicle.
11. Tighten the nut.
12. Tighten the nut.
13. Tighten the nut.
14. Connect the three-way converter to the dual converter Y-pipe, and tighten the nuts.
15. Connect the CMS electrical connectors.
16. Install the splash shield and the air deflector, and tighten the screws.
17. Lower the vehicle.
18. Connect the battery cable.