QX56 AWD V8-5.6L (VK56DE) (2005)
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Catalytic Converter: Service and Repair
Exhaust System
Removal and Installation
CAUTION:
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Be sure to use genuine exhaust system parts or equivalents which are specially designed for heat resistance, corrosion resistance, and
shape.
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Perform the operation with the exhaust system fully cooled. The system will be hot just after the engine stops.
^
Be careful not to cut your hand on the heat insulator edge.
REMOVAL
Remove exhaust system components using power tool.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
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Always replace exhaust gaskets with new ones when reassembling.
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Before installing a new heated oxygen sensor, clean and lube the exhaust tube threads using Tool.
Tool number
A: - (J-43897-18)
B: - (J-43897-12)
^
Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7 inches) onto a hard surface such as a concrete
floor; replace with a new one.
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Do not over-torque the heated oxygen sensor. Doing so may damage the heated oxygen sensor, resulting in the MIL coming on.
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If any mounting insulator is badly deformed, repair or replace it. If deposits such as mud pile up on the mounting insulators, clean and inspect
them.
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Temporarily tighten the nuts on the exhaust manifold side and the bolts on the vehicle side. Check each part for interference with other
components, and then tighten the nuts and bolts to specification.
INSPECTION AFTER INSTALLATION
