chech this out.
hey everyone, im sure i am not the only person who has done this, but i just made my own tool for checking vacumm lines for leaks and it worked flawlessly. cost was around ten bucks, everything purchased at lowes. just hook it up instead of your intake and pressurize your system with about 20psi from an air compressor. this will pressurize your IC piping if you are turbo, and if you open the throttle body it pressurizes the lines and mani, just dont use to much pressure because valves and shit are still open. hope it helps some of you chasing vacumm leaks.
Parts needed:
PVC adapter with one threaded end
PVC threaded insert of the same size to seal the one end
1 schrader valve, like off a tire
rubber coupling
sealent
i dont know much about uploading pics, but try this
go here
http://s79.photobucket.com/albums/j1...rrent=tool.jpg
hope the link works