I have had the same problem with my '96 Pathfinder, and worse. Last winter the
clutch pedal was dead on the floor. A local mechanic replaced the slave cylinder
and it still happened. Once the spring came the problem disappeared. Now it is
unusually cold again (I live in southern NJU) the problem is back. Dead clutch
pedal. I haven't driven it in weeks. A transmission specialist diagnosed it as
nneing the master cylinder replaced this time.