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Old 03-06-2004, 04:25 PM   #1
loudog800
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Join Date: Jun 2002
Location: Dearborn, MI
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WRX

Default oily air filter

I just got my oil changed at 29000 miles. The mechanic showed me the air filter and it had a lot of oily dirt on the filter. He said it was "air filter blow by" and I should get it checked at the dealer. Is this normal? I know it is scheduled to be changed at 30K, but is this something to get checked out or has anyone else seen this?

BS
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Old 03-06-2004, 05:19 PM   #2
Uncle Scotty
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Laugh it off....'air filter blow by'.......

THAT'S a GOOD one!!!!

Make sure the monkey put the airbox cover back on right....there are 2 tabs on the cover, inboard, that have to be hooked back into the lower part of the box.....it can be a PITA...but it is possible to do without taking anything apart.
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Old 03-06-2004, 11:21 PM   #3
loudog800
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So you think it is normal for a filter driven for 29k miles? He said it would have been normal if it weren't so oily.

Thanks
BS
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Old 03-07-2004, 12:51 AM   #4
Uncle Scotty
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Well....I had an almost brand new, stock, airfilter that I took out of the car and set it on a cardboard box overnight...and it left a pretty good oil stain on the box....so that leads me to believe that the stock filter is oiled at least a little form the factory....so...
Don't worry about it....change it and clean the inside of the airbox out and be
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Old 03-07-2004, 12:52 PM   #5
Hayes
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The OEM filter(Purolator) is an oiled filter as is the Purolator at your local auto parts store. A small amount of oil is from the crankcase ventalation system (ie PVC) and is considered normal. If however you have a great deal of oil like dripping then check the PVC valve ans associated hoses. Ed Hayes
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Old 03-07-2004, 07:53 PM   #6
mtb_dude
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When i changed out my intercooler hoses, they had a light film of oil from blow-by. Sort of normal in a turbo car with a bit of power.

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Originally posted by Hayes
A small amount of oil is from the crankcase ventalation system (ie PVC) and is considered normal. If however you have a great deal of oil like dripping then check the PVC valve ans associated hoses. Ed Hayes
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