A friend of mine just picked up a '91 Sonoma with a 4.3L. The clutch seems to be "leaking down" ie. the longer you hold the clutch in, the less evffective it is... to the point that it will stall or commence forward motion within about 30 seconds of depressing the clutch.
The slave cly is brand new and I bled it this evening (there was no air), so I'm thinking it must be a faulty master cyl. Does this sound reasonable
I also noticed that the master cyl and resovoir are not a part of the same unit. The resovoir has a hose that leads down behind the brake master to a place that I was too lazy to search for. It makes me think that replacing this particular clutch master may big a big pain in the ass... anyone done one before and got any info???