2001 lhs. I have a vac leak that I cant find with thy eyes.

 

AHHH...one of my favorites.....

Grab a friend who smokes, and a piece of duct tape. remove the air cleaner from the throttle body and cover the throttle body opening with the tape. remove the brake booster hose from the booster, and have your buddy Puff away into the hose...Where the smoke leaks out, is where the vacuum leaks in....

Been doing this for years, and it hasnt failed me yet.

 

or spray carb cleaner around in the area and it will spike up some more.

oh hey I just got a new smoke machine a portable one that uses baby oil for evap intake and that sorta good stuff.

 

Baby Oil????....No more blacklight and Green Smoke???Just sniff around for Baby Bottom????...

My Miller EELD bit the dust this week, so its back to the drawing board until I can Get the owner to crack his wallet
Am I to assume 3.2/3.5 V6???...The first thing to look at is the transfer tube from the egr valve to the bottom of the plenum....There is a rubber grommet that must be fitted properly or it will tear and leak vacuum.