Murano AWD V6-3.5L (VQ35DE) (2009)
Exhaust Manifold: 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 completely cooled down.
1. Remove following parts:
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Radiator cover grilles (RH and LH), air duct (inlet), air cleaner case (upper) with mass air flow sensor and air duct assembly: Refer to See:
Engine/Tune-up and Engine Performance Checks/Air Cleaner Housing/Service and Repair/Exploded View.
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Engine cover: Refer to See: Engine/Service and Repair/Removal and Replacement/Engine Cover/Exploded View.
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Front wiper arm: Refer to See: Wiper and Washer Systems/Wiper Arm/Service and Repair/Front Wiper Arm And Blade/Exploded View.
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Extension cowl top: Refer to See: Body and Frame/Cowl/Cowl Moulding / Trim/Service and Repair/Exploded View.
2. Remove exhaust front tube. Refer to See: Service and Repair/Exploded View.
3. Disconnect harness connector and remove air fuel ratio sensor
1 on both banks with the heated oxygen sensor wrench [SST: KV10117100 (J3647-A)] (B).
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Put marks to identify installation positions of each air fuel ratio sensor 1.
CAUTION:
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Be careful not to damage air fuel ratio sensor 1.
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Discard any air fuel ratio sensor 1 which has been dropped onto a hard surface such as a concrete floor, replace with a new sensor.
NOTE:
Figure is shown as an example of bank 2 (A).
4. Disconnect harness connector and remove heated oxygen sensor 2 on both banks with the heated oxygen sensor wrench [SST: KV10114400
(J38365)] (B).
A : Bank 2
C : Bank 1
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Put marks to identify installation positions of each heated oxygen sensor 2.
CAUTION:
-
Be careful not to damage heated oxygen sensor 2.
-
Discard any heated oxygen sensor 2 which has been dropped onto a hard surface such as a concrete floor,
replace with a new sensor.