After having my mustang for about 15 months now I just today discovered a hose hanging down low near the steering column.(I lifted it up and laid it on the hose going to the brake booster) As soon as I discovered the hose I spotted that PVC tee type connection with an open connection. So I say to myself...WTF? (1st picture)
The other end of the hose was connected to the air intake tube, close to filter box.(2nd picture)
I started engine and put my finger on the tee connection and sure enough it was pulling a small vacuum.
I had the oil changed by the dealer a few months ago and they obviously didn't notice it.
Also, I noticed that this hose lacked a clamp similar to what the others have. Could it have been left off from the factory?
(I did do the headers myself, in the 1st month I had the car, but I'm pretty
sure I never touched that hose.)
But moving forward, what exactly is that small amount of vacuum suppose to do? I'm assuming the hose to the brake booster has a high vacuum.??
How would that affect my air intake?