Originally Posted by Hellish Horse
2 Questions...What is a "MAP Sensor" or a "Bap Sensor" ?
What is a TAB/TAD Solenoid?
In the 3rd picture down... The Big Line that says "S on Vacuum Block" & has the 2 Small Lines for Fuel Pressure Regulator & EGR System.
When I was at the Junk yard today I took that piece off a Manifold. I was wondering if I should Drill & Tap it in my Manifold ??? It was $5 so No Big Deal if I bought it for nothing.
MAP and BAP sensors are the exact same part, the only difference is whether the port is attached to vacuum line or left open to atmosphere. MAP uses vacuum .. BAP does not.
The TAD (Thermactor Air Diverter) and TAB (Thermactor Air By-pass) are the solenoids that typically are on the backside of the passenger side strut tower on a Foxbody. I say typically because they can be move to a different location.
If you took this pieces off ( see attached) you can drill and attach it to your Explorer and solve a lot of the vacuum lines issues you've asked.
With that being said I did a little more searching on different Mustang forums today about the vacuum routing on an Explore upper intake and I came across this which I believe answers your question.
For the rear facing vacuum lines, I remove the Explorer's fitting and install the stock Mustang H.O. upper vacuum tree. To do this, you must drill the hole on a slight downward angle (as intake would sit when installed on car), tap it 3/8"NPT and install the Mustang vacuum tree. Note the orientation of the fittings when removing it from the stock upper. It then makes the upper a DIRECT swap.