I own an 04 996 turbo (recently in for service on the power steering pump which was making a whining sound). I went to start the car the other day and I had to apply an enormous amount of force to get the clutch pedal depressed. Once the engine started, the clutch was fine. If I leave it overnight, the clutch reverts back to the same thing (huge force required to depress it).

Anyone ever have this problem? (My dealer will be getiing the car in the next few days -- I do not have a great deal of faith in my local dealer's mechanical ability -- the last repair required an engineer directly from Porsche).

 

There is a pressure accumulator that holds hydraulic pressure when the engine is off, for the clutch hydraulic assist. I'd guess it's either leaking the pressure off, or has an air bubble in it. Maybe it just needs to be bled.