This is a common problem, had it on my Focus. Copied a previous post I made about it...
Part number from ford is FMU 1337254 and I paid £12.15 for it.
The hose just pulls off, I removed the idle speed control valve (and if you have it) the wiring going to the MAP sensor.
A little bit of oil on each end of the hose to push it on and some patients. Will go on eventually.
This is a picture I took showing everything I removed
Think I've named it all.
Have fun
