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Q: vacuum line from manifold on 2000 Pontiac Grand Am

where does the vacuum line that comes from the manifold connect into
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There are several vacuum lines that come off the manifold. There is an emission label under the hood that will show you where the vacuum line attach.
GMs often put them on the fan shroud. If there is a vacuum leak then you should be having some sort of drivability issue. If it's a 'vent' hose , or a 'breather hose (for emissions) it may not give symptoms. Maybe it's worth going to a shop and just showing them the hose in question. See how they treat you just might end up stumbling across a shop that you like and will be able to trust for future maint/repairs that you can't or won't do yourself.
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