Last night, as I was trying to get my air cleaner cover off I pulled this hose off. Actually, I pulled the small piece of metal tubing that it's attached to off. What's the hose for, and how do I reattach the piece of metal tubing? It's not threaded, and looks like it was tack welded on. Don't know if that's a stock setup or not. The hose has Gates C9070804 B200 written on it. The tubing is 1/4" ( 6 1/2 mm) O.D. The tape on the end was put on by me trying to make it slightly bigger to get it to stay in the hole, but it didn't work.