Vacuum Line?

[sknyfats]

I assume this vacuum line looking thing that isn’t connected on one end is normal? Maybe a breather or vent hose? Anyone know for sure what it’s for?
‘23 Black Diamond with the 2.7

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[Boreal]

I assume this vacuum line looking thing that isn’t connected on one end is normal? Maybe a breather or vent hose? Anyone know for sure what it’s for?
‘23 Black Diamond with the 2.7

Front diff breather