My (1988) clutch is loosing "oompf".  It seems to bleed down overnight, such that to start it up in the morning, I have to pump the pedal a few times, and put it in neutral to start it up.  If I don't do this, the van lurches.  After underway, it seems OK, but I have noticed some unusual resistance while shifting.  I'm thinking maybe I should bleed and replenish the system, but if that doesn't work, I'm wondering how to determine if it is the fault of the master cylinder or the slave.  Neither shows any outward signs of seepage.  Any thoughts?

Brian Doss
'88 Weekender