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Old 03-24-2008, 01:23 PM   #1
QwikRex
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Default Question about PCV change for 2004 WRX

Anyone replace their PCV valve, if so at what mileage? I also read somewhere that for the 2004 and on wrx, subaru changed the location of the pcv valve and made it so you had to buy the whole elbow and pcv assembly in order to replace it. Anyone know the correct part number for it? I also remember reading that some subaru dealerships said the pcv was an unserviceable part and did not need regular replacement. Is there any founding to this?
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Old 03-24-2008, 01:44 PM   #2
PaulRex
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i changed mine (2002 wrx ) and i also read that the location changed but there are a few install FAQs and directions on the forum if you search for a few minutes. I used a $5 valve i bought at NAPA and the install was very very easy, even if they moved it around it shouldnt be much harder to install.

As for not servicing the valve.. well.. when i removed my original one i was able to get it to stick closed if i shook it. sure i could have cleaned it, but they are cheap and should be serviced every 50k or so in my opinion.
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Old 03-24-2008, 02:12 PM   #3
Haelan
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The part is available at NAPA for probably 3 or 4 bucks. Take off the intercooler and it's really easy to get to. I replaced mine when I bought the car (28,000 miles).
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Old 03-24-2008, 07:53 PM   #4
QwikRex
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This link shows the 2004 and up wrx pcv to have an attached elbow/t-fitting: http://www.clubwrx.net/forums/showth...t=98574&page=5

I called all the subaru dealerships in my area for this, which is part#: 11819AA001 but none had it in stock. Anyone else have experience changing their pcv valve?
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Old 03-26-2008, 11:00 AM   #5
QwikRex
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Anyone?
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Old 03-28-2008, 04:34 PM   #6
Asinine
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IIRC, a few places said that it was actually cheaper to buy the part with the elbow included than not included. But yeah, it's technically not a servicable part in the respect that there is no recommended schedule for replacing it. Check out the sticky thread on scheduled maint. at the top of the forum for more detaild info.
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Old 09-14-2008, 02:17 PM   #7
Rippen Griffen
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I have a 05 wrx and it has the same PCV valve, I ordered the whole asembly for my car.

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Old 09-15-2008, 11:39 AM   #8
watchunglava
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Default pcv

i have an 07 n/a . anyway i change my pcv valve like every 10 k when i do my spark plugs. mine is in the rear of the engine. just follow your vaccum lines one of them will hold the pcv valve.

i go to subarupartsforyou.com way cheaper than the dealer and quick shipping here on the east coast
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Old 09-15-2008, 11:40 AM   #9
watchunglava
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u can see the valves nut in that picture
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Old 09-30-2008, 04:25 PM   #10
Gunner
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Where is the 04 valve located? Anyone has a pic? Thanks...
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Old 10-11-2008, 11:35 PM   #11
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What does the pollution control valve actually do and why would one need to replace it? Isn't it just crankcase gases being let back into the intake?

Sure I've replaced them on my OLD cars, but I haven't replaced one since. Does a new one actually improve anything (like MPG), or is that just what "the man" says for you to do?
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Old 10-12-2008, 10:56 AM   #12
onesixnin
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um..positive crankcase ventilation valves for the 04 are available from jamie at SGP. It's where I got mine. It came with the elbow/hoses. It was more of a pain than it needed to be. Get replacement hose clamps.
kaytanksbuy
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