For those that don't know, I'm rebuilding an Excursion that had a fire in the engine compartment. Because of this, I have nothing to go on while trying to route up some vacuum hoses. I can't find a source to purchase the factory hard plastic tubes, so I'm going to have to work with what I have...

The first issue I've run into trying to search for answers is the "elbow" thing- I don't know what it is called, but it's an elbow that bolts to the intake, and the throttle body bolts to it. Mine is aluminum, so answers based on the plastic one don't apply.

Also, there seems to have been TWO aluminum ones in 2000. Everyone that has tried to help me with pictures has a different one than mine. Theirs has the PCV port UNDER the throttle body. Mine has it on the side, with a coolant doohickie wrapped around it (my PCV valve also has a coolant doohickie wrapped around it).

My first question: There is a port on the back side of the elbow, right above the IAC. What does it go to?

The rest of my questions have to do with the hard plastic vacuum lines as they come out of the side of the elbow. My Excursion has THREE tubes leaving this location, but they were melted and gone about 6 or 8 inches after this. I DO NOT have EGR, so I don't need routing info for that. So, can anyone describe to me where these tubes go after leaving the side of the throttle boy elbow?

Thanks