Refer to other posts we have showing images of the problem

Owners of C6 Chevy Corvette (including Grand Sport, Z06 and ZR1 models) may complain that the clutch pedal sticks to the floor or the pedal stays low.

This may be the result of the clutch master cylinder bypassing.
This concern can be identified by having no resistance when the clutch pedal is pulled back toward the top of travel and then pushed to the floor.

The central valve cap inside the clutch master cylinder has likely popped off, causing fluid to bypass from the high pressure hydraulic line to the low pressure hydraulic line and reservoir.

The clutch master cylinder is not serviceable and must be replaced.