I'm seeing oil on my air filter. What would cause that?

Asked by GuruQD9D Apr 26, 2017 at 07:06 PM about the 2003 Mazda MAZDA6 4 Dr s V6 Sedan

Question type: Maintenance & Repair

4 Answers
223,905

Rowefast answered 7 years ago

It wouldn't be a K&N filter would it? I don't see how oil can get to the air filter otherwise. Unless there is a breather hose running to the air box, be the only other way, see where the hose runs to.

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salah answered 7 years ago

Check the PCV valve if bad replace new one if it's good pull the spark plug and look for them witch one has oil some time broken or bad piston ring will cause that..thank you and I hope this will help you

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enginecreator answered 7 years ago

Go to this page. Copy & paste Url. http://www.powertraindirect.com/what-does-oil-in-the-air-filter-mean/

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