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Pcv system on a 2000 navigator 3.4l v8

(1999 Lincoln Navigator)
in Germantown, MD on January 20, 2012
why does it have 3 hoses going into the pcv valve?
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Popular Answer
PCV systems normally allow "breathing" of crank case blow bye from both valve to be reintroduced into the intake manifold where it can be "recycled" for emission purposes.
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