Long story short. I'm about to take my 97 Ranger back to (my friend) the mechanic for the umpteenth time. He replaced the clutch and slave cylinder and within a week the resevoir was empty. I towed it back to him, and he just bled it again. My dad went to pick it up, and it was not disengaging the clutch within 10 miles.
Dad took it back and the guy replaced the slave cylinder again, thinking it was defective. I went to get it ( I live a couple hours away) and before I got home it was doing it AGAIN. So, he told me he thot it had to be the master cylinder. AFAIK, that's what he just replaced. My dad drove it around for a day or so and it seemed fine, so I went to get it today. A couple hundred miles later and, it's doing the same thing! I dunno if he replaced the master cylinder or not, but it obviously didn't help.
So, your clues: It's intermittently leaking fluid. It's also, apparently sucking in air.
I heard something about the quick connect on the line at the slave cylinder being problematic, but I don't know.
Anyone who's fought this battle before? And, before you say I should just get my money back, trust me, it's not that simple...
Thx,
CJB