vaccum for vac controls

[Cutty1]

someone telll me where the plastic vaccum line is suppose to go for the hvac controls not getting vaccum to my ducts.. this is for under the hood

 

[joeairforce]

you mean where it hooks up on the manifold?

 

[Bonnewagon]

Any full manifold vacuum source either on manifold or carb base. It usually goes on the vacuum "tree" at the back of the carb, but not allways.

 

[Cutty1]

wheres the vaccum tree? on the carb, in the picture above the vaccum source there that' s hooked to the back of the carb on mine

 

[Bonnewagon]

You may not have one. Every division is a bit different. Pontiac was generous with vacuum fittings. I have a tree with 5 nipples at the back of my carb, plus 5 more on the front of the carb. Any full manifold vacuum source will do. At the end of your plastic vacuum line there should be a rubber fitting,yes? Then there should be an empty nipple somewhere on your manifold or carb that same size. If not, just "T" into a manifold vacuum line like the air cleaner, or transmission. It's a full manifold vacuum line if a vacuum gauge shows around 20" at idle.