Altima V6-3.5L (VQ35DE) (2006)
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When removing the front and rear engine mounting through bolts and nuts, lift the engine up slightly for safety.
1. Remove the front wheel and tires using power tool.
2. Remove the engine undercover.
3. Remove the inner wheel well splash shields.
4. Remove the radiator and cooling fan assembly.
5. Remove the front exhaust tube.
6. Remove the front suspension member.
7. Remove the RH and LH three way catalyst support bolts in the order as shown.
8. Remove heated oxygen sensor 2 (bank 1), heated oxygen sensor 2 (bank 2), air fuel ratio (A/F) sensor 1 (bank 1) and air fuel ratio (A/F) sensor 1
(bank 2).
a. Remove harness connector of each sensor, and disconnect the harness from the bracket and middle clamp.
b. Remove both heated oxygen sensors and air fuel ratio (A/F) sensors using Tool.
Tool numbers
: KV10114400 (J-38365)
: - (J-44626)
CAUTION:
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Be careful not to damage heated oxygen sensors or air fuel ratio (A/F) sensors.
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Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7 inch) onto a hard surface such as a
concrete floor; replace with a new sensor.
9. Remove exhaust manifold and three way catalyst heat shields with power tool.
10. Remove the three way catalyst (manifold) (bank 1) and three way catalyst (manifold) (bank 2) by loosening the bolts first and then removing the
nuts and through bolts.
11. Remove the exhaust manifolds. Loosen the exhaust manifold nuts in the order as shown.
INSPECTION AFTER REMOVAL
Surface Distortion