Bench bleed it to avoid introducing air into the system.
At least the slave cylinder. The clutch master cylinder can be replaced at any time.
How to change a clutch and master cylinder on a 93 jeep wrangler
The clutch parts that wear out would be the clutch master cylinder and the clutch slave cylinder. Replacing the clutch master cylinder requires disconnecting the hydraulic line, unbolting and removing the master from the vehicle, bench bleeding the new master, install the new master then bleeding the system. Replacing the clutch slave cylinder requires removing the transmission assembly. I would recommend purchasing a shop repair manual for that vehicle if you want to DIY.
replace the bushing where the clutch pedal attaches to the master cylinder arm.
I would suspect a weak clutch slave cylinder or clutch master cylinder which may be preventing the clutch from disengaging fully; The slave cylinder is connected hydraulically to the clutch master cylinder. The clutch master is where you add fluid.
it's on the firewall beneath the left rad support rod
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yes,open bleeder valve on cluch slave cylinder and clutch damper to release air.
The same time as the brake fluid.
The clutch master cylinder is high up on the drivers side firewall, next to and slightly farther outward than the brake cylinder, it is the smaller of the two.
It was the clutch master cylinder. It finally went completely out. I checked the slave cylinder, it looked and operated ok, so I assumed it was the master cylinder, I replaced it, it works now.
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.