I think I have a problem with the clutch master cylinder.  Last night
coming home from night xc ski trip the van became more and more
difficult to shift. Finally it would not disengage when the clutch was
pushed in.  Stop lights meant turning the van off.

To me this seems like some sort of hydraulic thing like brakes.  It does
not feel like the clutch is shot, though it may be.

Can any one provide some suggestions for identifying the actual problem
and steps that can be taken to repair such.  This occurred in colder
weather, 0F.  After turning the van off for a while I was able to shift
for a little bit then the problem returned.

Thanks in advance for assistance.

Brad
85 Vanagon, 4sp
Plymouth MA