broke vacuum line id

[chessman21]

on my recently acquired 91 i found a broke vacuum line.. the truck has no overdrive nor does ac compressor engage. can somebody tell what this line goes to from the picture?

 

[chewy012]

Hey Friend, I asked this actually a few weeks ago. I believe it actuates your climate control. From the Tee, the bottom branch should connect to the manifold vacuum accessory port, may be why your A/C doesn't kick on.

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[AllanD]

Actually that vacuum operates the "Blend door" and the line is included in a bundle that runs into the cab kinda below the evaporator enclosure, that "bundle" also connects to the motor speed resistor module on the outside of the evaporator enclosure