Catalytic Converter: Service and Repair

Catalytic Converter Replacement

Removal Procedure






1. Raise and suitably support the vehicle.
2. Support the transmission with a suitable transmission jack.
3. Remove the transmission mount to transmission support nuts.
4. Raise the transmission off of the transmission support.






5. Remove the transmission support crossmember bolts.
6. Remove the transmission support crossmember.






7. Remove the exhaust muffler nuts.






8. Loosen the exhaust pipe clamp.
9. Slide the exhaust pipe clamp up onto the exhaust pipe adapter.






10. Slide the catalytic converter hanger out of the exhaust pipe hanger bracket and remove the catalytic converter.

Installation Procedure






1. Install the catalytic converter.
2. Apply water based lubricant to the exhaust pipe hanger bracket, in order to aid in installation.
3. Slide the catalytic converter hanger into the exhaust pipe hanger bracket.






4. Install the exhaust muffler nuts until snug.






Important: Ensure that the manifold pipe is square to the exhaust pipe adapter.

5. Slide the exhaust pipe clamp down and around the pipe connection.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

6. Tighten the exhaust pipe clamp and muffler nuts.

Tighten
- Tighten the clamp to 12 Nm (106 lb in).
- Tighten the nuts to 40 Nm (30 lb ft).






7. Lower the transmission onto the transmission support.
8. Install the transmission mount to transmission support nuts.

Tighten
Tighten the bolts to 40 Nm (30 lb ft).

9. Remove the support from the transmission.
10. Lower the vehicle.