Replacing PCV valve on 4 cylinder engine

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Old 17 Sep 2008, 09:23 pm   #1 (permalink)
Pszemol
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Default Replacing PCV valve on 4 cylinder engine

Do I just pop the old one out and put the new one in or does it need some
rubber grommet replaced, as well? I have 1995 Camry LE, 2.2 L.

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Old 17 Sep 2008, 10:18 pm   #2 (permalink)
mrdarrett@gmail.com
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Default Re: Replacing PCV valve on 4 cylinder engine

On Sep 17, 7:23 pm, "Pszemol" <Psze...@PolBox.com> wrote:
> Do I just pop the old one out and put the new one in or does it need some
> rubber grommet replaced, as well? I have 1995 Camry LE, 2.2 L.



I didn't replace a grommet - just do it while engine is warm so rubber
won't be brittle

Shake pcv valve (it should make a sound), clean out with brake cleaner
solvent. It's like a check valve, the fluid will only come out one
way
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Old 18 Sep 2008, 12:12 pm   #3 (permalink)
Daniel
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Default Re: Replacing PCV valve on 4 cylinder engine

Pszemol wrote:
> Do I just pop the old one out and put the new one in or does it need some
> rubber grommet replaced, as well? I have 1995 Camry LE, 2.2 L.

=======
I suppose people have different levels of service.
When I change mine, at timing belt replacement intervals, I also
change the grommet and hose. Interestingly, (to me anyway) Toyota
issued an upgraded hose last time - still improving the part. Same
thing with the gasket under the oil filler cap. You will find the part
number changed, and the part improved. This is another area of
potential oil seepage, but a fresh gasket - with the new profile, now
seals wonderfully.
Not a major issue, but the grommet does harden from the heat over
time, so will allow a small amount of oil to seep past. I'm never able
to get the old grommet out without having it break into pieces, so I
do this with the valve cover removed and inverted.
I also change the valve cover grommets, and valve cover gasket at the
same time, along with distributor O ring, and the seals associated
with the timing belt, crankshaft, cam, oil pump.
Also replaced the oil pan gasket at 120,000 miles, but it is FIPG
(form in place gasket) and has held up just fine.
The simplest way is to just pull and twist the PCV valve with pliers
to remove, and then push and twist (by hand) to reinstall, leaving the
grommets and gaskets alone, but I like keeping the engine clean and
free of leaks and seepage.
Just got a smog check and the mechanic said he's got the same year and
color Camry, but doesn't really take care of it. --- 295,000 miles.
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Old 19 Sep 2008, 07:09 pm   #4 (permalink)
johngdole@hotmail.com
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Default Re: Replacing PCV valve on 4 cylinder engine

Filter Manufacturer's Council suggests never cleaning a PCV valve and
then putting it back into service. I'm not sure if the wear is that
significant, but a cleaned valve tends to stick a lot easier for me.
These things are cheap enough ($6-8 valve plus grommet) once or twice
every timing belt.

http://www.filtercouncil.org/techdata/tsbs/94-2R1.pdf





On Sep 17, 8:18*pm, mrdarr...@gmail.com wrote:
> On Sep 17, 7:23 pm, "Pszemol" <Psze...@PolBox.com> wrote:
>
> > Do I just pop the old one out and put the new one in or does it need some
> > rubber grommet replaced, as well? I have 1995 Camry LE, 2.2 L.

>
> I didn't replace a grommet - just do it while engine is warm so rubber
> won't be brittle
>
> Shake pcv valve (it should make a sound), clean out with brake cleaner
> solvent. *It's like a check valve, the fluid will only come out one
> way


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Old 21 Sep 2008, 10:12 pm   #5 (permalink)
Pszemol
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Default Re: Replacing PCV valve on 4 cylinder engine

<johngdole@hotmail.com> wrote in message
news:8383d179-edf8-43cd-836a-f9c45db240ab@x16g2000prn.googlegroups.com...
> Filter Manufacturer's Council suggests never cleaning a PCV valve and
> then putting it back into service. I'm not sure if the wear is that
> significant, but a cleaned valve tends to stick a lot easier for me.
> These things are cheap enough ($6-8 valve plus grommet) once or twice
> every timing belt.
>
> http://www.filtercouncil.org/techdata/tsbs/94-2R1.pdf


Don't you think that recomendation of replacing PCV valve every 10000 miles
or 12 months no matter good or bad is little bit excessive? I do not have
the toyota maintenance schedule handy - anybody knows how often this valve
should be inspected or replaced according to the car manuafturer?

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Old 22 Sep 2008, 12:32 pm   #6 (permalink)
Daniel
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Default Re: Replacing PCV valve on 4 cylinder engine

Pszemol wrote:
> Don't you think that recomendation of replacing PCV valve every 10000 miles
> or 12 months no matter good or bad is little bit excessive? I do not have
> the toyota maintenance schedule handy - anybody knows how often this valve
> should be inspected or replaced according to the car manuafturer?

==
I don't believe Toyota shows this as a maintenance item. Replace only
if bad.
Yes. 10,000 miles or 12 months sounds excessive unless the engine is
badly worn emitting lots of "blowby" gasses from the crankcase.
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