Hey all.

I just recently replaced a leaking slave cylinder in my 96 Ranger. Not my first slave replacement by any means, but having an intermittant issue.

After everything was reassembled and bled, I drove the truck for about a week with no problems. Now, after driving for about 40 miles, the clutch pressure fades until the clutch stops disengaging. I'll let it sit for about an hour or two and it has great pressure again. Only once have I had to top off the reservoir. No visible leaks from the master, reservoir or line. There was brake fluid dripping out from the bell housing the first time it happend, but that was it, none since then. I have another new slave in stock, but I don't want to rip this thing apart again if I don't have to.

This is stumping me and the techs I work with!!

 

I know you looked, but is there any fluid coming from the back of the master in the floor?It could have a bypass problem.

 

Nope. No leaks inside. I may just replace the master and line. The truck has close to 200k miles.

 

make sure you bleed it correctly

YouTube - Ford Ranger & Mazda B-Series Pickup Clutch Hydraulic Release System Bleeding Procedures

YouTube - Removal and Servicing of Clutch Master Cylinder to Slave Cylinder Connections

 

That leaking fluid from the bell housing is what happened to me after replacing clutch, slave, and pilot. The slave then worked very strangely from the at point on. So I disassembled the whole dang thing and took it back to autozone. They played with it and assumed I did not bleed good enough and as a result I damaged it. They were nice enough to give me another.

On the second try, I bled the freakin' crap out of that thing. I bled and bled it...and it has worked great since.