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P0171, P0174 vaccum port
Posted to Technical Discussion Forum on 6/8/2015 9 Replies

This port [2008 GMC Acadia SLE, Engine/Propulsion Photo] is just supposed to have a cap on it and doesn't hook to a vacuum line or evap system anywhere?

Found several reports of a missing cap on a vacuum port at rear of intake manifold and at this point I'm ... Login to read more.

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car Vehicle Data

2008 GMC Acadia SLE 3.6L

Engine3.6 L
Trans6-speed Automatic (Electronic)

car Vehicle Data

2008 GMC Acadia SLE 3.6L

Engine3.6 L
Trans6-speed Automatic (Electronic)