Thanks!

Yup, one actutator can go bad. If your lucky it is just the rubber connector that is leaking, but it is mostlikely the actuator. Pull out the glovebox, get a MityVac if you don't have one, and you can test the actuator directly and you will know if it is that or not.
The trick it replacing it. If you have small hands and are patient you can apparently possible to get it out with out having to remove the dash. I had to take mine out. Also unless the plastic of the actuator is cracked or the lever arm it no working I would buy replacement diaphragms instead of buying a whole new actuator. It's much cheaper.

Here is where to get the diaphragms.
http://www.autoluxmbz.com/

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