Easy way to reattach MAP sensor's vacuum line on intake?

[spectraman]

Question for you all:

I began looking into changing the vacuum line on my '88 5.0's MAP sensor, and I see where it quickly disappears under the plenum, rendering the attachment point on the manifold out of *easy* reach.

Do I have to unbolt the plenum from the intake to change/retach this vacuum line?

Or do you professionals have any tricks to do this without disturbing the plenum?

Changing the MAP sensor looks like a piece of cake, compared to trying to get my hand or a tool under the backside of the plenum where the hose attaches.

Also... will the line attach to a nipple on the manifold or somewhere to the underside of the plenum? It looks like I need to get my handy mirror and flashlight out!

Any tricks/tips you can suggest would be appreciate!

-SM

 

[93 LX]

you can follow it back to the nipple on the back side of the upper intake. YOu can get your hands in there unless you have ham hands LOL Its a hose withing a hose. The nipple its connected to is 3/8s I think and the nipple on the MAP is 5/16.