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Old 09-04-2004, 05:50 PM   #1
Scooby Newbie
Member#: 67864
Join Date: Aug 2004
Location: virginia
1985 GL 4dr

Question PVC Valve

I am going to replace the pvc valve. Where is it? 85 GL with ea85 engine.

-BTW Any Ideas about stalling and low idle speeds???
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Old 09-04-2004, 06:04 PM   #2
Scooby Newbie
Member#: 54124
Join Date: Feb 2004
Location: Ohio
1988 Subaru RX, x3
White, White, Black


stalling and low idle speeds are a good sign of a vacuum leak. PCV valve could be the culprit. When replacing it, make sure you get a Subaru OEM part, the AutoZone/ aftermarket ones have been known to leak right of the box, causing a vacuum leak condition. On the turbo models I own, the PCV valve is on the intake manifold, but a carb car could be different. It should be fairly easy to find, just trace the large PCV hoses around until you see a suspicious part, pull off the hose look inside and see if it looks like a valve. 10 minutes or less of exploring with a flashlight and you should be set.

Be very careful of any plastic T's or parts on the PCV system, they do get brittle and will snap. A lot of times they are cracked and cause vacuum leaks, doing the 'blow test' on those parts is an easy way to check them (clean them up first) If all your vacuum lines are old and dry rotted, might as well replace those while your at it too. You can check vacuum lines with WD40 with the engine running, if you have a leak, it will suck in the wd40 and the idle will climb slightly.

(The engine designation is ea82)
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Old 09-05-2004, 01:44 AM   #3
WCSS Drunk
Member#: 8914
Join Date: Aug 2001
Chapter/Region: NWIC
Location: Portland Oregon
2005 Baja Sport
Regal Blue Pearl


PCV Valve is on the back side in the center of the intake... below the carb on the back if you have one... or below the throttle body if its EFI. I agree, be sure to use a genuine subaru one. be careful with the hoses as the hose that goes to the PCV valve is like $8. May be more now because last time I broke mine was back in like 1999.
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