SLAVE CYLINDER ISSUES

If the clutch slave cylinder fails, the pedal will drop to the ground and will not come back up. When the clutch does not disengage from the flywheel, it is usually the result of a leak or air in the hydraulic system or a poorly adjusted connection.
If you suspect a leak, regularly check the fluid levels in the reservoir. If you don't notice the fluid level drop within a certain amount of time, check for leaks or loose connections.
In some cases, a bad seal in the clutch slave cylinder can leak fluid and allow air to enter the line, resulting in a drop in pressure. Bleeding or replacing the clutch slave cylinder often restores proper operation.

You have a leak and you have air in the system. More than likely the slave cylinder is leaking, the slave is a direct acting one and as with all direct acting slave cylinder it is located inside the transmission bell housing on the transmission input shaft collar. The transmission must be removed to replace it.

no fluid in the clutch reservoir due to a failed clutch slave cylinder
time to replace both the clutch slave and master cylinder

first check to see if you have any fluid in the clutch master cylinder which is mounted by the firewall on l/h side of car. if fluid is inthere, follow the line/hose to the transmission. this line/hose goes to slave cylinder mounted somewhat on the front/top of trans with 2 bolts. that is the slave. have someone push the clutch as you are watching the slave cylinder for operation. it should move with clutch beeing pressed. if it doesnt move than you have a hydraulic issue/leaking master cylinder. if it moved nicely, tha i would be looking at the clutch.

Could be your clutch slave cylinder is bad,check your clutch fluid,if real low or empty then it is bad,it's located on the side of the transmission with a hydraulic hose connected to it,I have a 85 Nissan 720 4x4 5- speed,had to replace mine a few times.Here's a link on how to do. Repair Guides Clutch Clutch Release Cylinder AutoZone com Here's another link. Repair Guides Clutch Clutch Master Cylinder AutoZone com Here's the new part. Duralast Clutch Slave Cylinder 12425 Read Reviews on Duralast 12425 Your master cylinder probably is good,I just had to change the slave cylinder on mine,unless your's is leaking.If you are in a bind you can add brake fluid,yes it uses brake fluid.Then bleed it then it will get you home,you can get a one man bleeder kit,I have one,here it is. OEM One man brake bleeder kit 25036 Read 17 Reviews on OEM 25036

clutch fluid level droppin means that ur clutch master cylinder is leaking,u can check by looking inside car where pushrod goes thru firewall to see if its wet with brake fluid where rod comes thru wall inside car, a wet ,stained carpet.the other possibility is ur clutch slave cylinder located at side of ur transmission,usually drvr side is leaking fluid.if this is the case u will notice clear brake fluid at the bottom center of ur trans,right where it butts up towards ur engine. anyhow its a good idea to replace both pieces at same time to avoid any further issues with clutch pedal. good luck hope this helps

The clutch is not adjustable,it is a fluid clutch.It has to be a leak,or the slave cylinder,and,or, the master cylinder are bad,It does not have to be leaking to be bad,but it is one of the two.Rate please,thank you.

Of course check fluid first & if low you'll need to determine the cause.

Other than that, it would indicate that either you have a leak between the Clutch master cylinder & the Clutch slave cylinder on the transmission, or, one of those 2 parts is defective.

Check under the clutch pedal on the floorboard to see if you can identify any clutch fluid (same as brake fluid for the most part) around the area below where the clutch rod comes through the firewall. If you do, that means the clutch master cyliinder is leaking.

Next is to go to the transmission & see if you can identify the leak there.

Amazingly, cold weather and bad Clutch Slave Cylinders go hand in hand. Once you find the problem just replace the part, tighten the line, bleed the system & you should be good for a long time.

good luck.

Do not put oil in this system.It uses brake fluid in the reservoir.If the system doesn't have any fluid in it, there is a leak, and both the clutch master cyl and the clutch slave should be replaced. They both were used the same amount of times, and wear evenly. When you add fluid, the clutch master cyl compresses the fluid down the line/hose into the clutch slave cyl. This depresses the clutch fork/arm and disengages the clutch disc so the input shaft into the transmission stops moving, allowing the trans to be put into gear. LOOK FOR THE FLUID LEAKING TO ISOLATE THE PROBLEM. This is a closed system, and the fluid never gets used, unless there is a leak.

Either your master or slave cylinder is leaking (if hydraulic) Replace leaking cylinder with repair kit and blead the system. More serious it could be a problem on the clutch assembly.