Vacuum line?

[Boyd Who]

I really don't know what call this to search for, so I'll just ask.

On the back side of the air box there are two vacuum lines. The one closest to the fender runs to a spot under the coil pack. Any idea what it's for? I noticed mine was broken in half today. I did a temporary fix with some shrink tubing, but I' like to know where it goes.

TIA!

 

[monkeydude3]

i had a similar question a while back. I have no idea which should go to which connection, but those two lines go to a little bi-metallic strip in the air box that changes with temperature. Basically, when it is cold it allows some warm air from your exhaust manifold area to enter the air intake to help it warm up and keep combustion stable, mainly an emissions thing. I have switched those lines back and forth and haven't noticed a difference, although I'd like to know the proper setting.
one goes to your vacuum port on the intake, and one goes by the exhaust manifold. Not sure which goes where tho.

Take care!

George

1994 XL 4.0L OHV

 

[Boyd Who]

Thanks for the info, George!