1993 Lumina Euro 3.1 Problems

Hello,
I am having the following problems with my car. The right turn signal works intermited when activated. If I press the lever up and hold it. It then will work. And the cruise control has also stopped working to all together. The third problem is the AC. The blower only blows out on the top and bottom. No long out the front or sides. Any suggestions what this could be? Thanks

Re directional: multi-function switch worn.
cruise: Check vacuum lines, diaphram, fuse, & cable.
AC: loose or broken vacuum lines under dash, or bad control unit.

Re directional: multi-function switch worn.
cruise: Check vacuum lines, diaphram, fuse, & cable.
AC: loose or broken vacuum lines under dash, or bad control unit.

Thanks for the reply. I cleaned the Multi function switch and greased it. The switch is now working. Also took out the blower motor and found alot of dirt and instillation material inside the barrel. I cleaned this also and this is now working better. As for the cruise control, I cannot find any vacuum leaks.