PCV valve a maintenance item?

jayjr1105 · Jan 31, 2020

Should this be replaced every so often? Since they are dirt cheap and easily reached, I figure they should be but maybe I'm wrong.

mwe2121 · Jan 31, 2020

Yes they should be replaced as part of a maintenance routine. How often you should replace it is up for debate but I do mine every 60K miles. If they go bad they typically increase crankcase pressure which could potentially cause Leakes.

pkrface · Jan 31, 2020

+1 for yes, but I confess to almost never thinking of it. Thanks, I'll add it to the list of things for my next oil change.

lozawa · Feb 1, 2020

2001, 215,000 miles, original PCV valve. Going to change O2 sensors next week, (only have 2). Just for the heck of it.
Originals still working fine. No codes. Still running original alternator.

mwe2121 · Feb 1, 2020

O2 sensors go bad/become sluggish over time. Even if they are not setting a code they may be slow to react to changes. Denso's are the original manufacture of the O2 sensors on these vans.

davedrivesody · Feb 2, 2020

mwe2121 said:
If they [PCV valve] go bad they typically increase crankcase pressure which could potentially cause Leakes.

Yep, and also cause additional crankcase condensation in cold weather, making more work for your oil to combat the resulting acids.

Buffalo4 · Feb 2, 2020

You can usually just check them yourselves and clean them out with carb cleaner, but, since they are pretty low cost, esp after market ones, you might just want to replace it.
Does the OEM work better than the aftermarket ones, I don't know. Basically it is just a spring loaded valve.
So, perhaps a cleaned PVC OEM valve may work better than an aftermarket? Opinions?

oem is around $30.00 US.
Aftermarket is usually under $10.00
Buffalo4

davedrivesody · Feb 3, 2020

Buffalo4 said:
So, perhaps a cleaned PVC OEM valve may work better than an aftermarket?

Possibly, at least for some aftermarket. There's such a wide range of quality in the aftermarket space it's difficult to be definitive.

BTW, I recommend replacing the grommet, whether choosing to clean or replace the valve. It gets hard with age, heat, and oil, which can make it leak. Mine looked and felt okay at 100,000 miles, but it broke apart during removal. About $3 from Honda.

Buffalo4 · Feb 7, 2020

davedrivesody said:
Possibly, at least for some aftermarket. There's such a wide range of quality in the aftermarket space it's difficult to be definitive.

BTW, I recommend replacing the grommet, whether choosing to clean or replace the valve. It gets hard with age, heat, and oil, which can make it leak. Mine looked and felt okay at 100,000 miles, but it broke apart during removal. About $3 from Honda.

Don't you have to take off the valve cover to do that? Just curious. I haven't really looked at it.
If it is brittle and breaks, won't some pieces fall inside?
Buffalo4

davedrivesody · Feb 7, 2020

No, it just plugs into the rear of the valve cover.

Yes, there's definitely a risk of bits of grommet falling inside. Go at it carefully. After you get it started, pull it out with needle nose Vice-grips.

Buffalo4 · Feb 7, 2020

Thanks, I have changed my PCV valve but not the grommet.
Buffalo4

jayjr1105 · Feb 13, 2020

I replaced mine last week. Used a Beck/Arnley from rockauto for $15. Old one still rattled but had some oil baked on it.

kitol · Mar 4, 2020

jayjr1105 said:
I replaced mine last week. Used a Beck/Arnley from rockauto for $15. Old one still rattled but had some oil baked on it.

wow, they sure charge a lot for aftermkt-- some honda genuine online places have them for about $22ish, iirc.
This whole question is pretty interesting I think cuz some of our rigs burn some oil-- my '01 burned a bit when i gunned it a bit too much, or maybe it was weird oil that was in it-- cuz hasn't been happening at all in later yrs-- But iwondered about the PCV since a bad PCV will cause oil consumption, iirc.

Buffalo4 · Mar 4, 2020

kitol said:
wow, they sure charge a lot for aftermkt-- some honda genuine online places have them for about $22ish, iirc.
This whole question is pretty interesting I think cuz some of our rigs burn some oil-- my '01 burned a bit when i gunned it a bit too much, or maybe it was weird oil that was in it-- cuz hasn't been happening at all in later yrs-- But iwondered about the PCV since a bad PCV will cause oil consumption, iirc.

It can also cause enough of a pressure buildup in the crankcase to force oil out the rear seal.
Want cheaper ?

For Honda Insight 00-06 Odyssey 95-04 90° KP106 PCV Valve & Grommet Fittings Kit | eBay

Manufacturer Part Number: KP106. ---1Pcs PCV Valve. Honda Odyssey 1995-2004. Honda Insight 2000-2006. Honda Civic 1988-2000. Honda Civic del Sol 1993-1997. Honda CR-V 1997-2001. Honda CRX 1988-1991.

www.ebay.com

And,it includes a NEW grommet.
Quality? I sure don't know.

Buffalo4

PCV valve a maintenance item?

jayjr1105

mwe2121

pkrface

lozawa

mwe2121

davedrivesody

Buffalo4

davedrivesody

Buffalo4

davedrivesody

Buffalo4

jayjr1105

kitol

Buffalo4

For Honda Insight 00-06 Odyssey 95-04 90° KP106 PCV Valve & Grommet Fittings Kit | eBay

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