However, the line that I am following doesn't connect to a spider-like connection. I removed my air box (not the MAS yet) and the line became clear for me to see. I was initially looking for a spider-shaped connection where many of the vacuum lines connect based upon some reading here. If I understand correctly, the smaller diameter line is the one I am working with. I tried chasing the line into the engine compartment and there appears to be two lines coming over the bell housing into the engine bay for me to follow. The cap appears to be OK w/o any cracks to speak of.
After reading a few threads here on Rennlist about diagnosing hard shifts I thought I would try my hand at vacuum testing the line from the transmission at the modulator (that green thingy w/ the black cap).