I have a 1994 chevy k1500 z71. 4wd stick on the floor and found that my transfer case drops gears for the rearend, but wont engage front wheels. starting poking around and found most likely the actuator, but then I grabbed the vacuum line and its hooked up to the transfer case, but then the other end isn't hooked to anything. I need to find where this vacuum hose goes and possibly why the light wont light 4wdlo or 4wdhi when engaged. could this be why the front tires aren't pulling?

any help would be greatly appreciated!!!!

charlie