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Vacuum lines on a 2002 WS6

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Old 05-09-2009, 06:19 PM
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Default Vacuum lines on a 2002 WS6

What are the little hard plastic vacuum lines that fun from front to rear on the passanger side of the engine compartment.
Old 05-18-2009, 11:26 PM
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more than likely this is part of the pcv system that they have on the 4th gen ls1's i just replace mine awhile back just too let you know
Old 05-27-2009, 06:51 PM
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Passenger side are PCV system lines, venting crank case pressure to the manifold. Driver side are fuel evap



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