Mine does almost the same, but I have a vacuum leak to the left and down of my IAC... Its a lil T section and I dont know the name but its leaking and fucking my truck up lol.... Any thoughts on the name????

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2003 Ford Ranger ext Cab
4.0 5spd 4x4, throttle mod, intake mod
3in body lift, 2in torsion lift
33in Boggers