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Old 01-24-2005, 10:26 PM   #1
The Rusty Gear
Scooby Newbie
Member#: 62293
Join Date: May 2004
Location: Edmonton, Canada
2002 Impreza TS

Question Engine oil in air filter

Doing my 30K service and had some questions about my air filter. First off I found the hose to my PCV valve unconnected. I'm not sure If I somehow knocked it off while fooling around, or if it's been like that for a while but maybe that could explain what I saw on the Filter?

The first picture is the air filter coming from head on. You can see the black oily spot. The second picture, (showed up great with a flash) you can see oil seeping in throung the front and passenger sive (vents?) into the airbox.

Is this normal? What can be causing this?

I've also noticed a louder exhaust on hard acceleration (related to PCV not hooked up?)

Thanks from a first-poster!

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Old 01-24-2005, 10:33 PM   #2
Scooby Specialist
Member#: 69032
Join Date: Aug 2004
Location: Maine
2005 Legacy GT
Obsidian Black


You may want to cross ref this thread in the NA forum..

I imagine that the oil coming into the vent is not a good thing although a friend with a SVT Lightning did have oil in his Throttle body and Ford said that it was normal.. Just a guess that there is some sort of similarity..
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Old 01-25-2005, 05:10 PM   #3
Member#: 38867
Join Date: Jun 2003
Location: Houston, Tx.
11 Mazda


There shouldnt be oil in your Subarus air box... And my Lightning never had oil in the tb

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Old 01-26-2005, 10:19 AM   #4
Bottom Feeder
Scooby Specialist
Member#: 2808
Join Date: Nov 2000
Chapter/Region: MAIC
Location: Occupied Virginia

Replace your PCV valve. Make sure you haven't overfilled the crankcase with oil.
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