checking for vaccum leaks

[e30_kid89]

how would i be able to do this? i kno about the technique of spraying wd-40 or something on the hoses and then listening for a change in idle but with the m42 intake mani all most of the hoses run under neath and are not accessable without taking off the hole manifold. is there tool i could use to check without visually checking?? thanks

[Court M3]

first make sure you are in the correct forum. this should have been under general technical
then search

http://www.r3vlimited.com/board/showthread.php?t=39699&highlight=vacumn+leaks