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  • Flexible duct???

    Can anyone tell me what that flexible duct that runs from the front of the exhaust manifold to the bottom of the air filter housing into what looks like a dead end trap door? 258 I6

  • #2
    When it works right it is a warm air intake. When the engine is cold "THe Dead End" Opens up via vacuum and allows heated air from the manifolds to enter the air cleaner.

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