I have a black oil on air filter when I changed it??

Asked by migration_ALadweik Mar 02, 2013 at 09:39 AM about the 2007 Ford Explorer Sport Trac Limited 4WD

Question type: Maintenance & Repair

176,095

tenspeed answered 11 years ago

It took a while and I think you meant to type "I have black oil on the air filter when I changed it". -- That's sort of normal. Engine vapors are sent to the intake to be burnt as part of the emissions system.

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DavidH25 answered 11 years ago

Ditto. Tenspeed is right. The PCV draws clean air from that canister

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18,695

Michael answered 11 years ago

There should be a filter in line to prevent that much oil from backing up. What you don't say is how long it has been since the filter was changed. If it has been a LOT of miles, then sure, it could be normal. If it is only a fairly short while, like under 10,000 miles, then there is likely something wrong, and my first guess would be that you have engine blow by to a very significant degree.

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I have a black oil on air filter when I changed it??

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I have a black oil on air filter when I changed it??

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