Hello everyone. I had a look in the online service manual where it talks about PCV valve and I can't see anything sophisticated about it - just a spring with a valve. So...now the question is if it is reasonably clean and you give it a really good clean in addition to that, make sure it functions as per manual and doesn't stick etc. - is that good enough to put it back in or are there any hidden issues with old valves? And don't start "I would just buy one", please because if I thought so I wouldn't ask here! I am trying to understand what is it so important about this valve because dealer charges quite a lot for it (at least I think it shouldn't be that expensive - for a piece of plastic ,that is)

 

ok. my recommendation: buy a new one. they're less than $5 at the local autozone or kragens.

now, if you absolutely cannot buy a new one. i've dipped mine in gasoline before to give it a quick cleaning... make sure it rattles when you shake it (no sticking on the inside).

that should about do it.

 

I would just go ahead and replace the thing. It's cheap and it's painless. If your PCV valve still makes a sound when it shakes then it should still be OK.

 

its for emmissions. it routes unburned gases back to the combustion chambers via the manifold under positive pressure
and yeah put a new one in yourself.

 

Thanks for the answers. What I'll do I'll try asking around in auto shops for it and see what happens Thanks again