Bumping an old thread, because I've got a squeaking / groaning clutch pedal also, and just captured a video with the serpentine belt access cover removed, which shows pretty clearly that the sound is coming from the engine compartment:
trim.EF324AE7-E59D-4DBF-A80D-2E179BAC8C01.MOV - Video - VideoSprout
Anyhow, what do you more experienced 986 mechanics make of this particular noise? Maybe just the throwout bearing actuating components (fork pivots and contact surfaces) being dry and need of lubricstion? That's sort of my guess.
With the cover and all carpeting replaced, door closed, and engine running, the noise doesn't sound anywhere near this bad, and seems as though the noise is coming from the pedal cluster itself. (As the video above pretty clearly evidences, this is incorrect and misleading!)
The car drives OK, although possibly the clutch pedal effort is higher than it could be. Clutch has a history of sometimes having a
slight chatter, although has always held for me like a champ.