Originally Posted by
ala_xfire
Another trick I've seen the old timers use is an unlit propane torch.
Pass it around were ever you suspect a leak, if the idle smooths out, or speeds up, you found it.
CAUTION !! This can also cure the problem by turning your car into a flaming torch, so you didn't hear this from me !
Well said, common sense troubleshooting is a long lost art that youtube videos are (after the fact) made of. Keep away from moving parts and spark sources whenever doing this kind of troubleshooting!