Armada 4WD V8-5.6L (VK56DE) Flex Fuel (2009)
Catalytic Converter: Service and Repair
Removal And Installation
EXHAUST MANIFOLD AND THREE WAY CATALYST
Removal and Installation
REMOVAL
WARNING:
Perform the work when the exhaust and cooling system have cooled sufficiently.
1. Remove the air duct and resonator assembly. Refer to See: Fuel Delivery and Air Induction/Air Cleaner Housing/Service and Repair/Removal and
Installation.
2. Drain the engine coolant from the radiator. Refer to See: Engine, Cooling and Exhaust/Cooling System/Coolant/Service and Repair/Changing
Engine Coolant.
3. Remove the engine undercover using power tool.
4. Remove the radiator and radiator hoses. Refer to See: Engine, Cooling and Exhaust/Cooling System/Radiator/Service and Repair/Removal and
Installation.
5. Remove the drive belts. Refer to See: Engine, Cooling and Exhaust/Engine/Drive Belts, Mounts, Brackets and Accessories/Drive Belt/Service and
Repair.
6. Remove the air fuel ratio A/F sensors (bank 1, bank 2).
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Follow steps below to remove each air fuel ratio A/F sensor.
a. Remove the harness connector of each air fuel ratio A/F sensor, and harness from bracket and middle clamp.
b. Remove the air fuel ratio A/F sensors from both LH and RH exhaust manifolds using Tool.
Tool number : - (J-44626)
CAUTION:
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Do not damage the air fuel ratio A/F sensors
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Discard any air fuel ratio A/F sensor which has been dropped from a height of more than 0.5m (19.7 in) onto a hard surface such as a
concrete floor. Replace it with a new one.
7. Remove the front cross bar.
8. Remove the exhaust manifold (LH) following the steps below.
a. Remove the exhaust front tube. Refer to See: Engine, Cooling and Exhaust/Exhaust System/Service and Repair.
b. Remove the exhaust manifold cover.
c. Loosen the nuts in reverse order of illustration (A) using power tool.
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White Arrow : Front
d. Remove the exhaust studs from positions 2, 4, 6, 8 and remove LH exhaust manifold
9. Remove the exhaust manifold (RH) following the steps below.
a. Remove the exhaust front tube. Refer to See: Engine, Cooling and Exhaust/Exhaust System/Service and Repair.