what is a PCV valve???? anyone???

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raul_gotbeat
Posts: 34
Joined: Wed Dec 26, 2007 10:55 pm
Car: nissan 240sx

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what is a PCV valve and what does it do???

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blinker_fluid
Posts: 303
Joined: Mon Feb 19, 2007 4:21 pm
Car: 1991 Nissan 240SX FB
2000 Nissan Maxima SE

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positve crankcase ventilation
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raul_gotbeat
Posts: 34
Joined: Wed Dec 26, 2007 10:55 pm
Car: nissan 240sx

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what does it do???
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Emperor_Tha
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Joined: Wed Nov 22, 2006 12:56 pm

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it relief the pressure that get build up in the crankcase. It uses vacuum to do it.
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notslow
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Joined: Mon Oct 09, 2006 9:40 am
Car: Nissan Sileighty
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SpeedRacer1
Posts: 3144
Joined: Fri Jul 26, 2002 7:44 pm
Car: 1990 240SX, G35

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Its the valve at the rear intake side of the valve cover. It has a hose going to it from the intake manifold.
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