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2 pcv valves

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chehsgsx

15+ Year Contributor
141
0
May 15, 2007
monroe, New Jersey
i know the check valve in line with the pcv valve is the best option to remedy a leaky pcv.. but what about 2 pcv valves in line with each other??? i did this today car idles fine .. i don't see why it wouldn't work but just wanted to hear from you guys.. make sure i don't break anything LOL thanks for the input
 
Some of us do this, but instead of using 2 PCV valves, we use a US Plastics check valve inbetween the PCV valve and the intake manifold (sometimes with a catch can inline). Check out this thread for more info (and specifically post #57 for the diagram of the inline plastic check valve). You can also find the part number for the plastic check valve in there.
http://www.dsmtuners.com/forums/newbie-forum/229338-stupid-pcv-question.html
 
While it may work for a while, 2 potential leaky PCV valves are just that.

I would agree with Brian. At least with the check valve you'll stand a much better chance of holding back the boost from the valve cover area. And the check valve that was discovered by others is really cheap, at ~$2.00 (cheaper than a PCV valve) I ended up buying a couple.
 
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