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View Full Version : PCV VALVE!!!

Powerzen2002
06-03-2002, 06:39 PM
Hey.  I have a KA24E engine, (90 240sx).  Where the hell is this thing.  been look for almost an hour and cant find it!

Also, could this little thing cause carbon/black smoke to come out the exhaust if its bad ?  in any way?
240sxspeedracer1
06-03-2002, 07:02 PM
well, we have the same exact car so I can tell u from experience.  First buy the peice so U can know what ur looking for.
Then, go to the left side of the engine(opposite where the spark plugs are) and ull find it connected to a hose, just some pliers or some shit and yank off the hose and then unscrew the PCV and put in the new one.  There u go, took me less than 10 minutes.
Powerzen2002
06-03-2002, 07:45 PM
Yea.  I know what it looks like.  Can you give a little better description where it is? I mean, I bought it... and still cant identify it by looking.

Where is it exactly?  In location to the oil filter maybe? Or by the gas filter?


Thanks.

P.S. was there a performance difference?
Thanks again.
240sxspeedracer1
06-03-2002, 09:31 PM
well, the PCV valve is directly opposite where the spark plugs are(sorry if I repeated this but I'm telling, this is where it is) . &nbsp;So it is to the right of the fuel filter, and above the oil filter. &nbsp;All u would probably see would be a little peice of the metal peice. &nbsp;You cant see the thread until u start unscrewing it. &nbsp;Remember, just look for something a little silverish in the spot I just told u about. &nbsp;There is a little black hose, not too big in size connected to the PCV valve. &nbsp;There was not really a performance gain noticeable to me but if there is somethign wrong with urs, then u might be able to fix whatever problem u have. I just changed it cause I was doing a tune-up, not for any specific reason. &nbsp;good luck man, you'll probably be smacking yourself when you find it &nbsp;<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/tounge.gif" border="0" valign="absmiddle" alt=':p'> &nbsp;<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/tounge.gif" border="0" valign="absmiddle" alt=':p'> &nbsp;<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/biggrin.gif" border="0" valign="absmiddle" alt=':D'>
Powerzen2002
06-03-2002, 09:41 PM
Thank You. &nbsp;Im gonna go out there now and look for it with a flash light. &nbsp;Hopefully I can find it now! &nbsp;I dunno why, but I just cant find the damn thing!

Thanks again. I will keep you informed on my stupidity and blindness haha. <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt=':)'>

Thanks again.
Powerzen2002
06-03-2002, 09:55 PM
Ok. &nbsp;I think I found it. &nbsp;Is it behind another relay type of hose? &nbsp;Its kinda hidden. &nbsp;Has a screw fastener clamp on the hose? &nbsp;I DONT see any part of the PCV valve itself. &nbsp;Just a black hose.

Its running parallel right below the intake?
I dont know, it looks hard to get to.

Hopefully that its. &nbsp;Somebody PLEASE correct me before I go through the trouble of dismantling this thing.
aricanderson
06-03-2002, 10:59 PM
hi,

i just replaced my pcv valve and it just helps the engine recircluate the exhaust gases. &nbsp;First look at the intake manifold on the passengers sides of the car. &nbsp;Start from the throttle body and go towards the back of the engine going down the intake manifold where the air goes in past the throttle body. &nbsp;And you should see a black hose connected to the side of the intake manifold closest to the fuel injector rail and plugs. &nbsp;The black hose is connected to side of the intake manifold and hose is coming from the bottom of the engine. &nbsp;Inside that hose is the pcv valve. &nbsp;Loosen the hose and you will see the pcv valve partly screwed into the side of the intake mainfold in between the throttle body and the back engine compartent. &nbsp;Unscrew the pcv valve out and replace it with the new. &nbsp;Replace hose and throw away the old pcv valve.

hope it helps.
Powerzen2002
06-03-2002, 11:19 PM
Ah ok. &nbsp;I will give that a try tomorrow.

Thanks.
sykikchimp
06-04-2002, 12:09 PM
NO NO NO.. &nbsp;those instructions are for the DE.. &nbsp;On the E the PCV valve is right on top. &nbsp;EASY to get to. &nbsp;takes &nbsp;5 min to change.

here it is:

http://charles.sykikchimp.org/images/pcv.JPG
Powerzen2002
06-04-2002, 02:09 PM
Thank you chimp.
sykikchimp
06-04-2002, 02:20 PM
My pleasure.. &nbsp; <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/tounge.gif" border="0" valign="absmiddle" alt=':p'>
Dunkee
06-05-2002, 07:19 AM
Does anyone know where the PCV valve is on a 96 SE and what is the easiest way to get to it? &nbsp;I read a FAQ on 240sx.org but they never specify what car it was for. &nbsp;It looks like it is behind the trottle body under a hose connected to the radiator but I don't want disconnect it w/out making sure.