I just got a new air filter for my JCW intake and when I was putting the cover back on I noticed the suction tube had disconnected from wherever it connects to. I tried to look where might it go but no luck. I added a pic show the tube i'm questioning about.

TIA

 

The vacuum tube has a "T" in it. the "T" usually is located next to the By-Pass valve. One side of the "T" goes to the By-Pass valve and the other side connects to the tube coming out of the air-box. The By-Pass valve is just to the left of the throttle bodyand between the two manifolds, its a little hard to reach unless you have a really small hand. Hopefully you didn't pull the vacuum line off the by-pass valve. (if you did the car will run really bad).

Good Luck,
Steven Tyler