look at the right side of the firewall.
Master Cylinder for brake and clutch are located next to the ABS unit on the firewall of the driver side in the engine bay. Slave cylinder for clutch is located on the bottom of the transmission.
Under the hood at the top right corner. The brake master cylinder is also there, but the clutch is the smaller of the two.
If it ain't the clutch itself then its prob. your slave or master cylinder.
Check your clutch master cylinder and slave cylinder for leaks,if no leaks,then you need a new clutch kit.
Look for leaking fluid at the slave or master cylinder.
The clutch and brake`s share the same resovoir the clutch master cylinder is attached to the top of clutch pedal and the clutch slave cylinder is inside the gearbox bell housing.
first check your clutch slave cylinder for leaks, if its leaking ,replace and bleed system,if its not leaking,bleed system ,dont forget to bleed clutch damperand if its still not right, then replace clutch master cylinder.
The Clutch slave cylinder is located on the passenger side of the bellhousing.I recommend to replace the Clutch Master cylinder also;if either one is replaced , the other will fail in no time.
At least the slave cylinder. The clutch master cylinder can be replaced at any time.
To add clutch fluid on a 1992 Nissan Sentra, locate the clutch master cylinder, which is typically found near the brake master cylinder on the driver's side of the engine bay. Remove the cap from the clutch master cylinder reservoir, and add the appropriate brake fluid (usually DOT 3 or DOT 4) until it reaches the recommended level. Be sure to avoid overfilling and replace the cap securely afterward.
The master clutch cylinder is attached to the clutch pedal. When one depresses the pedal hydraulic fluid is forced from the master cylinder through the hard line to the slave cylinder. The piston in the slave cylinder is driven against the clutch linkage thereby releasing the clutch.
on driver side firewall,theirs a clutch master cylinder. use dot 3 brake fluid.