Catalytic Converter

Catalytic Converter





Removal and Installation

NOTE: Exhaust fasteners are of a torque prevailing design. Use only new fasteners with the same part number as the original. Torque values must be used as specified during reassembly to make sure of correct retention of exhaust components.

1. With the vehicle in NEUTRAL, position it on a hoist.

2. Remove the Heated Oxygen Sensor (HO2S).

3. Remove the 4 bolts and position aside the heat shield.





4. Remove and discard the 4 nuts and 1 bolt.





5. Remove the RH halfshaft.

6. Remove the Catalyst Monitor Sensor (CMS).

7. Remove the 3 bolts and the halfshaft support bracket.





8. Remove the 4 bolts and the catalytic converter bracket.





9. NOTICE: Do not forcibly bend or twist the exhaust flexible pipe. Failure to follow these instructions may cause damage to the flexible pipe.

Using cable ties, support the exhaust flexible pipe with a support wrap or suitable splint.






10. NOTICE: Do not forcibly bend or twist the exhaust flexible pipe. Failure to follow these instructions may cause damage to the flexible pipe.

Detach the muffler and tailpipe assembly isolator and remove the 2 catalytic converter-to-muffler and tailpipe assembly nuts.
- Remove the catalytic converter assembly.

- Discard the 2 nuts and gaskets.






Installation

1. NOTICE: Failure to tighten the catalytic converter manifold fasteners in 20 Nm increments until reaching final torque of 55 Nm will cause the converter to develop an exhaust leak.

Install a new gasket, catalytic converter assembly and new fasteners. Tighten the bolt and 4 nuts in the sequence shown, in 3 stages.
- Stage 1: Tighten to 20 Nm (177 lb-in).

- Stage 2: Tighten to 40 Nm (30 lb-ft).

- Stage 3: Tighten to 55 Nm (41 lb-ft).






2. NOTICE: Do not forcibly bend or twist the exhaust flexible pipe. Failure to follow these instructions may cause damage to the flexible pipe.

Install a new gasket and 2 new catalytic converter-to-muffler and tailpipe assembly nuts.
- Attach the muffler and tailpipe assembly isolator.

- Tighten to 48 Nm (35 lb-ft).






3. Remove the cable ties, support wrap or suitable splint from the exhaust flexible pipe.





4. Install the catalytic converter bracket and the 4 bolts.
1. Tighten the 2 catalytic converter bracket-to-engine block bolts to 50 Nm (37 lb-ft).

2. Tighten the 2 catalytic converter bracket-to-catalytic converter bolts to 25 Nm (18 lb-ft).






5. Install the halfshaft support bracket and the 3 bolts.
1. Tighten the upper bolt to 48 Nm (35 lb-ft).

2. Tighten the 2 lower bolts to 24 Nm (18 lb-ft).






6. Install the RH halfshaft.

7. Install the Catalyst Monitor Sensor (CMS).

8. Install the 4 bolts and the heat shield.
- Tighten to 10 Nm (89 lb-in).






9. Install the Heated Oxygen Sensor (HO2S).

10. Fill the transmission/transaxle to the correct fluid level. For Automatic Transmission/Transaxle, refer to Transmission Fluid Level Check in Automatically Shifted Manual Transmission/Transaxle Preliminary Inspection. For Manual Transmission/Transaxle, refer to Transaxle Draining and Refilling in Manual Transmission/Transaxle.