EGR valve vacuum line??

Diagram courtesy of Tmoss & Stang&2birds.
mustangFoxFordVacuumDiagram.jpg


See http://www.veryuseful.com/mustang/tech/engine/ for more help.
 
There's a little solenoid on the rear side of your pass. side strut tower. It hooks up to the top nipple on that solenoid.

Mine actually goes into the little egr harness thing that hangs under the air intake tube.

Here is a pic of mine I took during my upper/lower intake install.

Its the little white line running to the left of the pic. I had already disonnected the egr valve before the pic was taken.

dsc00373.jpg


My egr runs into this, and then it branches into 3 other locations. Be carefull with these lines. They are plastic and break easily as I found out lol. Just look at the broken tip on my egr line ;).

Hope this helps!