Pathfinder 4WD V6-4.0L (VQ40DE) (2006)
Limit: 0.3 mm (0.012 inch)
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If it exceeds the limit, replace exhaust manifold.
INSTALLATION (LEFT BANK)
Installation of the remaining components is in the reverse order of removal. Note the following:
Exhaust Manifold Gasket
Install in direction as shown.
Exhaust Manifold
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If stud bolts were removed, install them and tighten to the specified torque.
Exhaust manifold stud torque: 14.7 Nm (1.5 kg-m, 11 ft. lbs.)
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Install exhaust manifold and tighten nuts in numerical order as shown.
NOTE: Tighten nuts No. 1 and 2 in two steps. The numerical order No. 7 and 8 shown second step.
Heated Oxygen Sensor
CAUTION:
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Before installing a new air fuel ratio sensor 1 and heated oxygen sensor 2, clean exhaust system threads using oxygen sensor thread cleaner and
apply anti-seize lubricant.
Tool number
: ( - ) J-43897-12
: ( - ) J-43897 18
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Do not over torque air fuel ratio sensor 1 and heated oxygen sensor 2. Doing so may cause damage to air fuel ratio sensor 1 and heated oxygen
sensor 2, resulting in the "MIL" coming on.
REMOVAL (RIGHT BANK)
1. Remove engine assembly.