nano

so after a long hot day of running around in the jeep, my clutch pedal is not holding pressure and the jeep will just take off on its own, it is a 1985 4 cyl 5 spd, anyone know what this could be

96_xj

When you push on the pedal does it feel any different?

If the pedal feels the same and while depressed it moves on its own it is the throwout bearing and throwout fork. That is what happened to mine.

If the pedal feels mushy when this happens there is something else going on and we need more description

nano

IT Works ok its just i sometimes have to pump the clutch to get pressure...

tuxfan212

pull the cap off of the slave cylinder and have someone pump the clutch. If bubbles come up you have air in the line probably from a leak somewhere. In any case if you get bubbles coming up you can just keep adding more fluid to the clutch slave and pump it out. Mine leaks REALLY SLOW and I have to pump it every once in a while.

nano

is the slave the small silver place where u add fluid? also is that what is leaking and making my carpet black by the clutch pedal?

00jeepXJ

Agreed.. the other comment about making carpet black sounds like your clutch cylinder is leaking. Might be where you are having problems. Look under dash and if the fluid is leaking from the steel rod that goes into the back of the clutch master cylinder you could have a bad cylinder. Best of luck.

96_xj

Read this article about it leaking on the inside. It will cover everything you need to know:

If you have a manual tranny, and have brake fluid from your clutch cylinder on your Fuse Box and carpet, You need to read this before it's too late, and learn how to effectively clean it out before irreversible damage occurs.

http://www.olypen.com/craigh/fusebox.htm

tuxfan212

Yes mine leaks from there but I have rubber mats and it is about a drop a month. I am almost sure that is what you need to do though.

breakthecycle128

^^X2 - I had the same problem and I replaced the clutch master cylinder and that did the trick.