Clutch goes to the floor like it is not connected. what could be the problem

see if this link helps you find out why.
2004 cavalier clutch pedal goes to floor Google Search

connect the pedal to the arm

If your fluid was low (which is why you likely added some,) you may need to "bleed" your clutch master cylinder.

Check your clutch master cylinder's fluid,it's located under hood in right corner,if low or empty,then your slave cylinder is bad and leaking,it's connected to side of transmission.Here's a link. Repair Guides Clutch Clutch Release Cylinder AutoZone com Here's the part. Duralast Clutch Slave Cylinder 12425 1992 Nissan Datsun D21 Truck 2WD 4...

You will have to be more specific in order to get help on this site .... does the clutch go to the floor randomly without pushing it with your foot? Does it just go to the floor when you press it with your foot? If the last is yes then does the transmission disengage when the clutch goes to the floor as it should or does something else happen? Normally you would want your clutch to go to the floor ... see where I'm going with this?

seems a bit early for clutch. how many k's? I would start by checking the intake tube for splits & security & airflow sensor. they will cause the engine to rev but no response (like a slipping clutch) so its manual right?

The clutch should go to the floor =) But if it's not disengaging the clutch disk, there's definitely a problem between the pedal and the clutch disk. I'm guessing you have a hydraulic clutch?

what i think has happened is the clutch thrust bearing has worn through the pressure plate fingers this will entail removing teh gearbox to replace the clutch as their no other way to gain access to replace the clutch.

Does the clutch pedal offer any resistance? The clutch and brake system use the same reservoir, there is a hose coming out from the side of the reservoir that goes over to the clutch master cylinder. Sometimes the brake fluid level goes low as brake pads wear and lowers the fluid level too low to work the clutch. On the front side of the transmission, is a clutch slave cylinder, check it for leaks, if it leaks replace it. Hope this helps, let me know.

There is either air in the system or a leak in the clutch slave cylinder. Check your fluid make sure it is full and the cap is tight.