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A forum for the legendary Nissan Pathfinder and Infiniti QX4.
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Micallen
Posts: 141
Joined: Tue Apr 17, 2018 9:42 am
Car: 2003 Nissan Pathfinder SE 4x4 V6

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https://www.youtube.com/shorts/fAg44IUK7xs

What is this?
Last edited by Micallen on Tue Mar 05, 2024 8:20 am, edited 1 time in total.

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VStar650CL
Technical Expert
Posts: 11927
Joined: Thu Nov 12, 2020 1:25 pm
Car: 2013 Nissan Altima 2.5 SL
2004 Nissan Altima 2.5 S

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It's the Power Valve actuator, see EC-26 and EC-739 here:
https://www.nicoclub.com/service-manual ... 3%2Fec.pdf

The purpose of the Power Valve is to narrow the intake passages at low engine speeds, which increases velocity of the airstream and helps keep the engine smooth at idle and increase torque at the low end.
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Micallen
Posts: 141
Joined: Tue Apr 17, 2018 9:42 am
Car: 2003 Nissan Pathfinder SE 4x4 V6

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VStar650CL wrote: ↑
Tue Mar 05, 2024 9:00 am
 It's the Power Valve actuator, see EC-26 and EC-739 here:
https://www.nicoclub.com/service-manual ... 3%2Fec.pdf

The purpose of the Power Valve is to narrow the intake passages at low engine speeds, which increases velocity of the airstream and helps keep the engine smooth at idle and increase torque at the low end.
Thank you. Time to replace some hoses.
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