Air sucking through oil fill
My car seems to be sucking air through
oil fill cap. Sometimes it will idle rough
and sometimes it will idle just fine. The
car runs just fine going down the
highway. Replaced upper and lower
intake manifold gaskets and nothing
changed. 3800 series II. 145,000 miles
When was the last time you replaced/checked the PCV valve?
Was gonna check that today. Make sure o ring is there and still intact. I'll update u Thanks!
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