Oil In My Intake.

That's normal. The tube is a breather (air) tube for the crankcase. As such, there is a small amount of oil vapors floating around in there and it will eventually accumulate in the "accordion." As long as it's only a small amount, it's nothing to worry about.

I have a question about that too. There is a hose that runs from the accordian and connects at the oil filler cap. I tore it when I replaced the air filter earlier today. Is that just an air hose? And will it hurt to run the car without if for couple of days? Oh I have A gen 3 with the Vulcan 3L

Originally posted by SixFoFalcon@Apr 8 2004, 10:02 AM
That's normal. The tube is a breather (air) tube for the crankcase. As such, there is a small amount of oil vapors floating around in there and it will eventually accumulate in the "accordion." As long as it's only a small amount, it's nothing to worry about.

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Thanks SixFo, I was getting pretty worried. Could a filter or some kinda check valve help protect the intake?

A check valve would not be a good idea. The PCV system already has a check valve--the PCV valve itself (it serves another function, but that's not important here.) A filter might be a decent idea, but it would eventually get clogged and allow those vapors to sit in the crankcase, diluting your oil. This can cause accelerated wear.

I know some people have installed a catch-can or condensation can on their PCV system so that some of those vapors are condensed and the resulting sludge is kept out of the intake tract.

Have the same situation. Found mine today (98 duratec) during an inspection. Put up a post before a found this thread :blink: I went a bit further and checked inside my throttle body and found a black oily substance on the inside of the flapper. I've seen black (dry) soot inside the throttle body before but not oily (wet) soot. Is this normal or is it a part of the oil vapors entering the flex tube from the breather tube?