LR3 (LA) V8-4.4L (2009)
Catalytic Converter: Service and Repair
Catalytic Converter RH
Catalytic Converter RH
Special Service Tools
Removal
1. Disconnect the battery ground cable.
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.
4. Remove the catalytic converter.
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Remove the 2 nuts.
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Discard the gasket.
5. NOTE: Do not disassemble further if the component is removed for access only.
Using the special tool, remove both H02S from the catalytic converter.
Installation
1. CAUTION: Make sure the anti-seize compound does not contact the H02S tip.
Using the special tool, install the H02S to the catalytic converter and tighten to 45 Nm (33 ft. lbs.).
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Clean the components.
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Apply an anti-seize compound to the thread of the HO2S.
2. Position the catalytic converter to the front muffler.
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Clean the components.
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Install a new gasket.
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Tighten the nuts to 55 Nm (40 ft. lbs.).
3. Install the exhaust system.
4. Connect the battery ground cable.