hydraulic clutch

[EngineerJoyce]

92 jeep commanche with 230000 miles-the clutch seemed to slip and the pedal went to the floor. I started pumping the clutch pedal and it will build it back up to normal. Is this a bad master cylinder? I know it may need a new clutch-never one put in it-but I am getting advice that it is the master cylinder.
Thanks
JF

 

[Red Dave]

Sounds like the clutch master cylinder to me.

If it was the slave cylinder, there would probably be brake fluid leaking out underneath the bell housing.

 

[Walt Davies]

Doesn't really matter what it is master or slave you still have to pull it down and replace everything.
Walt

 

[Steven f/AZ]

Sounds like a bad master or slave cylinder.

Don't bother replacing one without the other. I put a new slave cylinder on once and the contamination from the master ruined it within a week.

Also, be sure to flush out all the old fluid from the lines and reservoir.

 

[EngineerJoyce]

the master cylinder is found on the wall near the engine correct? where is the slave cylinder found? Can a person with moderate mechanical skills replace these or should I just let a mechanic do it?
thanks
jf

 

[Allan in NE]

If the clutch is actually slipping, since it's leaking and with the outfit having that kind of miles, I'd be for replacing the whole schmear.

Everything from the pilot bearing back. Both hydraulics and mechanical.

No, not a job for the faint of heart.

Allan

 

[Anonymous-0]

replaced the one right near the firewall on my old Cherokee years back ,not a big deal ,think I got a rebuild kit for it,to tell you the truth,the spring inside actually broke
.The other one is down near the trany ,not as much fun to mess with ,,unless you've got a hoist.but if you can pump it up with the peddle it's probalby the master.
hint the slave is actually attached to your clutch peddle

 

[Steven f/AZ]

(quoted from post at 05:31:30 10/14/07)
hint the slave is actually attached to your clutch peddle

Nope, the master cylinder would be attached to the clutch pedal - generally a rod goes through the firewall to it.

The slave cylinder is the one that runs the clutch... if you have an external slave cylinder like the older Honda Civics, it will be easy to change. If the slave is inside the bellhousing like a Ford, then you need to do quite a bit more work.

 

[S. Crum]

Just replaced one of Ford's better ideas in my son's 92 F-150 with the 5 spd. He was driving up cardiac hill at Mansfield U and stomped the clutch to shift and the pedal went easy to the floor, he couldn't downshift and it started smoking and stinking. He eased it back down the hill and took the long way around then nursed it the 40 miles home building a head of speed for every hill on route 6. I pulled it down last weekend and the internal slave cylinder had leaked and squirted fluid into the clutch pack.Now it has all new clutch components and slave cylinder. These parts cost more than I paid for my first 2 Chevys combined.

 

[Red Dave]

Yes, the master cylinder is the one on the firewall, connected to the clutch pedal.

 

[Red Dave]

Here is a better Hint: It's the other way around. The master is the one connected to the clutch pedal.

 

[Anonymous-0]

My '98 F-150 did that last year. A couple spoons of brake fluid seemed to cure it and it hasn't returned.

The Ford clutch cylinder is hollow around the input shaft of the transmission. Handy for spraying brake fluid on the clutch plate, very unhandy for fixing because the transmission has to be removed.

Gerald J.