In cold weather my clutch on the '95 F150 is having problems. It seems to happen when it is in the 20s and below (F). For example we has some weather down to 4F and the next morning the clutch pedal went to the floor and I hand to manually raise it, I was able to drive by only depressing the pedal part way and after it ran a few miles it seemed to work normally. Next day was 15F in the morning and it was worse, managed to drive it to nearby shop and they flushed and bled the hydraulic clutch system. It was fine after that (temps were consistently in the mid to upper 20s at this time), then this morning it was cold again (mid teens) and the clutch was acting up again, but became normal with driving. I checked it this morning and there was fluid (roughly a little under half way full in the reservoir. I can only figure there must be a leak and it is slow enough that eventually air gets in where it is leaking, but then you would think it is not going to recover unless the cold worsens the effect of the (assumed) small amount of air getting in. Well, guss I'll see what happens soon as it warms up again in a few days.