Vacuum line question...

[fox racer]

ok, over by the throttle body, there is a square vacuum thing (at a loss for the name) that has 5 holes in it, as in it takes 5 vacuum lines. one goes to the rear of the intake (pcv?) which is black. and one goes to the EGR (?)which is white and one just isnt used. now, i have 2 extra vacuum lines (one black, one white) what are they for? if someone has a pic of wat im talking about, or the area about im talking about i can convey my into comprehensible english... lol

if you have no idea what im talking about sorry... but please dont be a smartass since i dont kno my stuff as well as you

 

[fox racer]

update: if you have a chiltons book... go to 4-7 theres a pic

 

[Daggar]

I don't remember where I got this from (or rather who). Someone on Stangnet here, posted this a while back. Hope it helps.

EDIT: Ahhh... TMOSS posted this. It's for an 88 but should be the same for your 91 (except for the SD vs. MAF thing).

 

[Daggar]

Here's another pic off of TMOSS's site. If that doesn't help, I've found his postings in my favorites. They are here:

http://www.veryuseful.com/mustang/tech/engine#Diagrams

 

[HISSIN50]

just for the sake of being accurate, the last time i checked, Tom's diagrams are hosted on S&2B's site (only to give credit where it is due - we all appreciate both of them keeping those diagrams around for us to refer to).

 

[tmoss]

I made them up, but credit for keeping them available goes strictly to Stang+2Birds.