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Old 09-08-2003, 03:32 PM   #1
tjhenn
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Join Date: Jan 2003
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2003 Impreza TS
Green

Default PCV on 2003 TS

Does anyone know where the PCV is on the 2003 Impreza TS? I've seen some posts here and at Scoobymods that show it being behind the coil pack, under the air filter, but when I took that out, it looked nothing like the Purolator PCV I bought (PV1019). It was just a threaded tube with a nipple on one end for the vacuum hose. There was also mention that it was in the front of the engine. I'm not sure if that was it because I couldn't get it out with out removing the alternator. It looked like it had a selonoid on it. Is that the PCV? Also, how often does it need to be changed? I thought I'd do it when I was doing everything else at the 15,000 mile service, but if I can't get it out, it may have to wait until I take it to the dealer for the 30k mile checkup.

Thanks!
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Old 09-09-2003, 07:52 AM   #2
DaveM
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The PCV valve is at the other end of the hose screwed vertically into the engine block.

DaveM
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Old 03-08-2004, 10:14 PM   #3
tomkang2000
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Default PCV Valve Part #

the PCV Valve on 2003 TS is different from other imprezas; I don't think PV1019 will fit; OEM part # is 11810AA040;
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Old 03-09-2004, 12:31 AM   #4
Psydotek
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PCV Valve mania seems to have gripped the Service & Maintenance forum.

Nothing wrong with that though since it is fairly important for emissions (and lately fuel mileage). It's also relatively inexpensive for a maintenance item too ($2 from Kragen/Autozone, $6-7 from the dealer). I think it's something they should have put in the service manual though.

http://www.scoobymods.com/forums/sho...ight=PCV+valve

It's usually towards the back of the intake manifold.

[you're lucky you don't have an intercooler getting in your way...]

-Henry
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Old 03-09-2004, 01:34 PM   #5
tjhenn
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Like Tom said, I'm not sure its the same PCV valve as the WRX. When I took off the hose to look at it, it was just a hollow threaded tube with no valve in it, not like part PV1019. I haven't changed it yet, waiting until my 30000 mile maintenance. Probably have to talk to the parts guy at the dealer.

Thanks!
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Old 03-21-2004, 06:16 PM   #6
Cabal
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Quote:
Originally posted by tjhenn
When I took off the hose to look at it, it was just a hollow threaded tube with no valve in it, not like part PV1019.
I ran into this today when trying to change mine, only to discover it was just a hollow tube (and smaller in diameter than the replacement Subaru part I bought). It was in this location, but no clip:



Do the 2003 NAs have one that needs to be replaced?
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Old 08-08-2004, 02:03 PM   #7
vrg3
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Bump for an answer!

Do 03 NAs not use PCV valves somehow? I guess it's plausible that a robust enough IAC system and a speed density fueling system could make it possible to implement PCV without a PCV valve...
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Old 08-09-2004, 03:25 PM   #8
sj72
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I have the same question on a 2002 Legacy GT 2.5 NA.

I have checked the locations provided by ScoobyMods and this forum. I have a valvle screwed in to the engine behind the coil pack pointing towards the passenger side.

I purchased Purolator PV1019, but the PCV I see on my car is nothing like the Purolator valve. Just a threaded tube with a nipple hole at one end.

I took off the "valve", sprayed Carb cleaner through it and used foam swabs to clean out the residue inside. It came pretty clean, so I applied a little teflon tape to the threads and resealed. Can't say I noticed a huge difference, but RPM's may have dropped every so slightly in idling.

Any help on identifiying if the 02' and up 2.5 engines do have a PCV, and the proper part number is appreciated.
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Old 08-10-2004, 01:18 PM   #9
tjhenn
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I haven't heard a definative answer yet, but I can't see anything else on the NA 2.5's that look like the PV1019. So I guess I'm just going to assume that the NA engines don't use the typical PCV.
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Old 08-12-2004, 09:06 AM   #10
LordBass
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Hmm.. I have an '02 TS and replaced my PCV at 30k miles. I believe the 2003 is identical. As I recall the PCV was at the top of the motor, pretty much like the photo above. Might have to remove the airbox, I can't remember without looking at it.

Either way, it took about 5 minutes to replace.. And if you let it go to 60k miles (or maybe even more), it shouldn't be a big deal.
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Old 08-12-2004, 07:19 PM   #11
Cabal
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Quote:
Originally Posted by LordBass
Hmm.. I have an '02 TS and replaced my PCV at 30k miles. I believe the 2003 is identical. As I recall the PCV was at the top of the motor, pretty much like the photo above. Might have to remove the airbox, I can't remember without looking at it.
Perhaps they changed it for 03, mine definitely has the hollow tube as located in the picture above. Maybe I'll get a dollar for the unused PCV at the next meet.
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Old 03-16-2005, 12:27 PM   #12
sfsubaru
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Platinum Silver

Question Have you changed the PCV valve yet?

Have you changed it yet? I'm planning to do mine soon on my 03 Forester X. As DaveM said, it looks like it's screwed vertically into this swivel piece inside the engine? block. On mine you need a long socket extension, probably 10 inches total reach to get to the PCV valve. The tricky part would be to finagle a 21 or 22mm wrench down there to hold on to the swivel piece so you can unscrew the PCV valve. Do you have any tips to do this?

Quote:
Originally Posted by tjhenn
Does anyone know where the PCV is on the 2003 Impreza TS? I've seen some posts here and at Scoobymods that show it being behind the coil pack, under the air filter, but when I took that out, it looked nothing like the Purolator PCV I bought (PV1019). It was just a threaded tube with a nipple on one end for the vacuum hose. There was also mention that it was in the front of the engine. I'm not sure if that was it because I couldn't get it out with out removing the alternator. It looked like it had a selonoid on it. Is that the PCV? Also, how often does it need to be changed? I thought I'd do it when I was doing everything else at the 15,000 mile service, but if I can't get it out, it may have to wait until I take it to the dealer for the 30k mile checkup.

Thanks!
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