Thanks for the help guys...Charles, you're right about that wire. I disconnected that harness and put my voltmeter to it. It puts out (therefore my compressor receives) +24V when I turn the AC switch on, and zero volts when it's off.
Also, I traced the two vacuum hoses that goes in and out of that funky vacuum switch on my fender, and figured out that it activates my AC idle up. One hose comes in from the main vacuum system providing vacuum, and the other hose goes all the way to the other side of my engine and into the thing that pushes on my fuel pump (?) to speed up my idle when the AC is on.
So, I know that that wire is seeing +24V when the AC switch is on...so I guess that it is a clutch failure after all. I will check the ground and make sure that it is properly connected...but other than that, I can't see how it could be anything else.
I guess I'm going to be making a purchase at G&S in the next couple of months.
