Vacuum leak somewhere under TFS upper intake

[BlackVert]

i have been having idle problems for the last couple of weeks, and i have determined that there is a vacuum leak somewhere up under the upper intake on the driver's side. when i spray carb cleaner on that side in the area between the heads and the intake, the idle is affected, so un-metered air must be getting in from there.

if it makes a difference, i have a trick flow street heat intake. i know there are 2 hoses connected to the upper (to the the fuel pressure regulator and the pcv valve), and they both seem to be air-tight.

is there something else that is supposed to be connected to the underside of the upper intake or what else could be the source of the leak?

 

[sonicblue87lx]

I know im not helping much but i have a vacuum leak as well. I had the guy at alternative performance point it out its like on the underside close to the firewall.

 

[mo_dingo]

You might want to try the smoke method to locate the specific point. Then R & I a new gasket and make sure you torque it correctly per the haynes manual. BTW, 96in.lbs = 8ft.lbs, so if you don't have an in.lb torque wrench you can subsititute 8 in it's place, or 10 if your torque wrench doesn't go that low.

Scott

 

[BlackVert]

to bring this thread full circle, here is where the leak was:

for context, here is the bigger picture:

 

[BlueOvalStangGT]

Thatll do it!

 

[BlackVert]

Thatll do it!

OT: i saw your sig .. the vortech broke the a/c condensor? did the boost break it?

 

[Mrgreen94gt]

That's the line for the fuel tank vent stuff, isn't it? I had a problem with that last winter. Drove me nuts.