A/C Compressor Won't Kick On

Now we're totally confused..............

The dash actuators for the heat and a/c venting is supposed to be vacuum operated................correct?.................sure looks so.

Problem is that we can locate only ONE vacuum inlet/outlet anywhere on the firewall that could possibly feed the dash system...........there are 2 small lines coming out of one good sized molded grommet.......BOTH of these lines are hooked up to a small black plastic canister on top of the fender well of the passenger side.........BUT, the lines are both the same size, and the inlets of the canister are NOT......one is slightly larger than the other......and the screwy thing is that they don't even look like they are made to snap a line onto............I've asked, and can't seem to find anyone who knows exactly WHAT the canister IS.

If I don't get vacuum to the dash system, my selectors for a/c and the like won't work anything..........this is probably why there's no juice for the compressor...........no?

We can find NO OTHER vacuum lines going into the drivers compartment.......NONE.........these 2 lines MUST do something.........

After we bought the car and detailed the engine bay, we hooked up those lines exactly as they came out............BUT, the previous owner could have screwed it up........................

WHAT IS THE CANISTER (it is NOT the a/c dryer I'm talking about.....I'm not that confused, yet)...........
........and WHERE do the 2 small vacuum lines go? Are they the ones that run the dash controls??

and if NOT, then WHERE is the other feeder line?????????????????

HE-EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE-LP! :blob6: