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that line sounds like it comes from your valve cover to your breather,there should be a PCV valve in the vavle cover,(positive crankcase ventilation valve,its purpose is to take the air and vent back through the carberator for better emission controls. ,the goo is from alot of oil being sent though the pcv to the brerther.

answercheck to see if oil filler cap or engine vent is clogged up u should not get brown goo(oil) in air cleaner if engine is vented also check PVC pull out of valve cover and shake if it rattles it is good if it does not rattle replace and see if that fixes problem
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โˆ™ 2015-07-14 15:06:49
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Q: What is wrong if a 1990 V8 302 Ford Bronco has a light brown goo in the air filter which looks like it is coming from a hose that is connected to the head covers.?
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