Thread: AOS Oil
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Old 12-19-2013, 09:46 AM   #5
runjmc2
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Join Date: Jan 2013
Location: Phoenix, AZ
Posts: 231
After replacing my "working" original on a '97 with 105K miles I have the same question.

Should there be ANY oil in the vent hose that goes from the AOS to the intake?

By design I would assume the answer is NO, but is there an authoritative source that can confirm this?

If that is the answer, seems a good way of checking the AOS would be to pull the vent line, on the intake side, and look for oil....no?
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