Can someone tell me what is this vacuum line for?
I believe its dumping back to intake or picking up air from it?
I need to know for sure.
thank you
Vacuum for the brake booster and other devices.
DO we know if it's intake air or return air in to that hose?
That's used for vacuum reference IIRC. Manifold - Vacuum Supply. Z
https://www.tascaparts.com/oem-parts/ford-brake-vacuum-hose-dg1z9c490b/?c=Zz1icmFrZXMmcz1oeWRyYXVsaWMtc3lzdGVtJmk9TVQwOTI3NjUmcj0xMyZhPWZvcmQmbz10YXVydXMmeT0yMDEzJnQ9c2hvJmU9My01bC12Ni1nYXM%3D (https://www.tascaparts.com/oem-parts/ford-brake-vacuum-hose-dg1z9c490b/?c=Zz1icmFrZXMmcz1oeWRyYXVsaWMtc3lzdGVtJmk9TVQwOTI3NjUmcj0xMyZhPWZvcmQmbz10YXVydXMmeT0yMDEzJnQ9c2hvJmU9My01bC12Ni1nYXM%3D)