Vacuum Leak Test

[ptim]

Is there a easy way to detect a vacuum leak, other than taking it in to a local shop.

BTW it's not for me, its for a buddy of mine. 2001 5.3 L Tahoe

Thanks,

[quicksilver]

I like to get a can of brakecleaner and spray around the hoses or the intake while the engine is idleing and listen for a change, if there is a leak you will notice a change when it pulls in the brake cleaner.

[Tally TransAm]

make sure you dont have shitty arcing plug wires when you do this or you could end up with a problem

ask how i know

[NotoriousGreaseMonkey]

Bring it to me and I will put my smoke machine on it...
Safe fast and easy

[SATAN]

I've got a pretty good idea where it's leaking without even seeing it. Check the base of the intake manifold when it's cold. All this great diag. without even knowing the symptoms!!