Clutch pedal stays pressed to the floor

Inspected the throw out bearing arm for damage if okay and not loose only two things it could be the pressure plate is broken or the throw out bearing is in pushing on the pressure plate. You'll need to remove the transmission and inspect for broken parts.

This issue is caused by either a defective pressure plate or a leak in the hydraulic system allowing air in the line. Once either one of these issues happen, we most likely need to remove the transmission and replace the components of the clutch and hydraulic system.

Here are some guides that will get into more detail:

https://www.2carpros.com/articles/clutch-doesnt-work-sometimes-or-not-at-all

https://www.2carpros.com/articles/inner-workings-of-a-car-clutch

Also, I attached the procedure of how to replace the clutch and bleed the system. There is a small chance that air in the lines can be bled out but due to this being a sealed system, if there is air in it, it is because there is a leak.

Let us know if you have questions about this material and we can go from there. Thanks