Catalytic Converter: Service and Repair

Catalytic Converter

Removal

WARNING: Observe due care when working near a hot exhaust system.
1 Disconnect the battery ground cable. For additional information, refer to Specifications [1][2]Battery
2
WARNING: Do not work on or under a vehicle supported only by a jack. Always support the vehicle on safety stands.
Raise and support the vehicle.
3 Remove the exhaust system. For additional information, refer to Exhaust System Service and Repair




4 Release and disconnect the 2 LH HO2S electrical connectors.
- Release the clip.




5 Release and disconnect the 2 RH HO2S electrical connectors.
- Release the clip.




6 Remove the LH catalytic converter.
- Remove and discard the 2 nuts.




7 Remove the RH catalytic converter.
- Remove and discard the 2 nuts.




8
NOTE:
Do not disassemble further if the component is removed for access only.
NOTE:
Note the fitted position.
Remove the 4 HO2S from the catalytic converters.

Installation
1
WARNING: Make sure the H02S wiring harness is not twisted more than 180 degrees and is not in contact with the exhaust.
CAUTION: Make sure the anti-seize compound does not contact the HO2S tip.
CAUTION: Make sure the anti-seize compound does not contact the catalyst monitor sensor tip.
Install the HO2S to the catalytic converters and tighten to 45 Nm (33 lb.ft).
- Clean the components mating faces.
- Apply anti-seize compound to the sensor threads.
2 Install the RH catalytic converter.
- Install and lightly tighten the nuts.
3 Install the LH catalytic converter.
- Install and lightly tighten the nuts.
4 Install the exhaust system. For additional information, refer to Exhaust System Service and Repair
5 Connect and secure the HO2S electrical connectors.
- Secure the 2 clips.
6 Tighten the catalytic converter to exhaust manifold clamps to 40 Nm (30 lb.ft).
7 Connect the battery ground cable. For additional information, refer to Specifications [1][2]Battery