bullmtnbiker

So it appears my PCV valve grommet is leaking some oil (and potentially causing erratic idle when the outside temperature is hot). I am going to replace it but would like to know if I need to put anything on the grommet other than a dab of oil to ensure a good seal. I read on one web site somewhere where the mentioned using some sort of silicone seal.(???)

Thanks.

jaje

just a question...are you boosting this engine? if so then you may be overloading the pcv valve causing a leak

bullmtnbiker

Nope... it's just a plain vanilla CRX SI that seems to have gunky build up around the PCV valve grommet.

Jigga JJ

wuts the PCV Vlave "grommet"?

bullmtnbiker

It's in the back of the engine... replaced it... we'll see if it leaks.

S2Kev

It's a rubber seal where the pcv valve plugs into on the manifold.

Jigga JJ

OOO so when that rubber seal goes it cuases the irratic idle?....

S2Kev

Not necessarily, but if it's damaged it can cause a vacuum leak causing a higher idle.

bullmtnbiker

It turns out that the particular PCV system doesn't add much to the entire vacuum system. I removed the hose into the intake manifold and it didn't do much.