It is inside of the transmission bellhousing, You can't see it until you remove the transmission.
Have a look at: Clutch slave cylinder Clutch cable More than likely the clutch itself has broken spring(s)
It's going to look like your power brake reservoir. It is the reservoir for your clutch slave cylinder.
Go to the transmission and check slave cylinder for leaks,also check clutch master cylinder,then go look by your clutch pedal to see if its leaking there,these are your places that it could be leaking,is your fluid level low,if not ,then you may need a new clutch kit.
Look for leaking fluid at the slave or master cylinder.
For master cylinder, lift the hood, look to the top right corner. It's the smaller of the two (brake master cylinder is the other one). The clutch slave cylinder is on the underside of the transmission.
without more info it sounds like the cluch may be worn. you might look for an adjuster for the cluch at the slave cylinder.
If no signs of leakage at slave operating cylinder,then check clutch master cylinder for leakage,and look at clutch pedal and see if you see any clutch fliud as rod comes thru firewall.follow all lines.
sounds like your slave cylinder is bad or your clutch, find your clutch fluid reservoir and see if its full ,if not look for a leak if there is a leak most likely that's the problem and needs replacing.
Most of the time it is because of a bad slave cylinder that does not hold pressre or is leaking. They use brake fluid and to check them look at the CLUTCH MASTER CYLINDER near the firewall.
look at your clutch master cylinder and check fluid, if low ,check your slave cylinder for leaks ,its bolted on your transmission with 2 bolts ,its at where the boot is ,if leaking ,then replace ,if not then u will need anew clutch.
Probably the clutch is not disengaging. This could be due to the clutch cable being out of adjustment, or the clutch master cylinder not having enough fluid, the clutch slave cylinder being worn out, or the throw out bearing being shot. Try to have a mechanic look at it.
Open the hood, and take a look at your firewall. If it has a clutch master cylinder its a hydrolic. If you only see your brake booster and thats it, chances are its a cable clutch. But as a basic rule, if you have a master and slave cylinder it is hydrolic.