1994 Altima clutch master and slave replacement

Open the hood and look for the clutch master cylinder.
It is smaller than the brake master cylinder, but should be very near it.
The clutch master cylinder is about half the size of the brake master cylinder.
Take the lid off and see if it is full.
If it is empty, the likely problem is the slave cylinder (which is mounted on the transmission at the other end of the brake fluid line), has failed and needs to be replaced.
It will likely not do any good to fill the clutch master cylinder, as you will trap air in the line.
The slave cylinder will need to be replaced, and the line bled to get the air out.
Be blessed.

if it,s hydrolic look to put in fluid.

have you checked the fluid in the clutch master cylinder? look under the hood on the drivers side, on the firewall. looks like a brake master cylinder,takes regular brake fluid. if low,top it off with brake fluid and keep pumping it[the clutch pedal] until it works right. you may also have a bad clutch slave cylinder[located on the side of your transmission] it may be bad. it's not uncommon for it to go bad at any time. it's called a slave cylinder,or hydraullic clutch cylinder. you can purchase it at most auto parts stores,such as auto zone or advance auto parts. wish you the very best of luck,thank you for choosing fixya.com

sounds like there is still air in the system
the master cylander needs to be bench bled before installing in vehicle
if that does not fix problem check fluid lines for leak

your clutch uses a hydraulic master and slave cylinder to disengage. It is likely that the slave has been leaking and the reservoir gone dry, thus allowing air into the system and reducing effectiveness. Check the clutch master cylinder reservoir (near the brake reservoir) fluid level. If low, also check the slave cylinder at the clutch for leakage. If leaking, replace the slave and bleed the system. If you need procedures or have more questions, please let us know.

no, the clutch disk is just worn out.

There are two types of clutch actuators. (Mechanical & Hydtraulic)
A. For mechanical type,- Check the clutch cable as
this could be cut from wear and tear. This is easy
to replace. You can find this connected to the
pedal and the clutch lever near the transmission.
B.For hydraulic operated - Check the level of the
hydraulic oil at the cylinder of the hydraulic
actuator under the hood. This actuator is
directly connected to the pushrod driven by the
pedal. If the actuator is leaking, you have buy
a repair kit (Hyraulic clutch repair kit for Ford
Ranger 1994 MOdel.) These items must be
repaired to activate your pedal.

if its a hydralic cluch it has a piece of metal that sticks out right after the bell houseing
and when you step on the clutch it should move if not you ether are low on fluid or master is gone

Replace the clutch master and slave cylinders.
I recently had the exact same problem on my car.

slave cyl is sepreate from master cyl you have air in the clutch hydraulic system replace slave and inspect clutch master for leaks on drivers floor board area pull carpet back and make sure to bleed system properly!!!!!!!