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Old 11-05-2003, 05:06 PM
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PCV valve info question...

OK, here it goes, When I am changing Oil in my cars, my mother in laws car, etc, I change trhe PCV valve. I am not 100% sure exactly what this vavle does for engines.

Car info:
1996 Plymouth Van 3.3 LTr engine,

Please if anyone can explain what this valve does, and should I change it Every Time I change Oil?

Juice,

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Old 11-05-2003, 05:14 PM
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Simply put, The PVC valve takes the fumes out of the engine caused by heat, blowby etc and puts them back into the cylinder to burn them. I dont think you need to change them every oil change, as long as they are free. You can tell by shaking it. If it rattles, it is free.
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Old 11-06-2003, 08:54 AM
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If you have any concerns about the PCV being functional, it wouldn't hurt anything to clean it with every oil change as good insurance.
A good soaking in a solvent of your choice, carburetor cleaner or brake cleaner would suffice. Afterwards, simply shake it, let it air dry or apply some air pressure to it. This procedure will eliminate any buildup of material that will eventually cause them to stick and fail.
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Old 11-06-2003, 02:54 PM
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Thanks for your replies,,

Hey, Thank you guys for explaining what it is used for, and that it is ok to clean them. I have been changing them because I find they are really dark from some kind of buildup. I will start cleaning then instead of replacing them. That way I can change them every once in a while.


I really appreciate the help on this site, It is Awesome!

Juice,
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