want to install a vacuum gauge on my 99 windstar, 3.8L,but i cant found any vaumm line.anyone here know where is vacuum line locate at 3.8l engeine?

thank you

Hi
the accessory vacuum lines come off of the back of the intake manifold. They are colored semi-rigid lines. Or there is the brake master cylinder vacuum. Do you want to put in a permanent gauge or measure vacuum?

i m going to install a permanent gauge ,the vacuum line is locate at left side or right side? can you show me ,thanks alot

http://files.automotiveforums.com/gallery/watermark.php?file=501/361291Picture_052-med.jpg

Hi
as my machine is a little different (96)I can't say I immediately can identify a vacuum line from your picture.
Does your gauge come with any directions? Does it say to "splice" into and existing vacuum source? I suppose you could put it in line in the PCV line between the PCV valve and the intake.
Anyone want to jump in here? I have not installed a vacuum gauge, just measured vacuum a time or two.

The vaccum system is ALWAYS drawn off of the intake side of an engine. Follow that 1/2" hose coming from the can behind your brakes master cylinder to the intake manifold, for a likely spot to tie into.

Sorry, I may be a bit naieve, but why do you need a permanent vaccuum gauge? I thought this was a "turbocharger" type necessity.

Karl