Master or Slave Cylinder going out????
CF Veteran
Joined: Nov 2008
Posts: 2,473
Likes: 9
From: Paso Robles Ca
Year: 1991
Model: Cherokee
Engine: 4.0
you have air in the line
if it was something other than air you would be loosing fluid
and pumping the peddle would not help
I'm not that familiar with the BA10-5 transmission do you need to drop the trany to bleed the slave
if it was something other than air you would be loosing fluid
and pumping the peddle would not help
I'm not that familiar with the BA10-5 transmission do you need to drop the trany to bleed the slave
Seasoned Member
Joined: Jan 2009
Posts: 443
Likes: 2
From: Prescott, AZ
Year: 1996
Model: Cherokee
Engine: 4.0L
Believe it or not I think that this is the best XJ forum around. I have had a lot of my questions answered here, sorry you had such a bad experience. But honestly the people in this forum seem to know a lot more than anyone on NAXJA.
Seasoned Member
Joined: Jan 2009
Posts: 443
Likes: 2
From: Prescott, AZ
Year: 1996
Model: Cherokee
Engine: 4.0L
CF Veteran
Joined: Nov 2008
Posts: 2,473
Likes: 9
From: Paso Robles Ca
Year: 1991
Model: Cherokee
Engine: 4.0
for all of you having problems bleeding your clutch
look at your system
if you have the line coming of the top of the master cylinder you will have a very hard time bleeding it
air will get trapped in the loop
I know no one has a power bleeder so
you gotta do it the messy way
lets start with trying it in the jeep you will need help
have your help put his or here foot on the clutch peddle
this is kinda like bleeding normally but at the connection
unscrew the line from the master not all the was just loosen it until you get air and fluid
you my want to have something to keep the fluid from ruining everywhere
if this method dose not work or you want to try it first its cleaner
unbolt the master from the fire wall
keep the lines connected
be sure to have fluid in the master
tip the master up until the line has a little downward angle
put pressure on the plunger and open the bleeder on the slave just like your standard bleed but no loops for the air to get trapped in
this should fix you air problem
look at your system
if you have the line coming of the top of the master cylinder you will have a very hard time bleeding it
air will get trapped in the loop
I know no one has a power bleeder so
you gotta do it the messy way
lets start with trying it in the jeep you will need help
have your help put his or here foot on the clutch peddle
this is kinda like bleeding normally but at the connection
unscrew the line from the master not all the was just loosen it until you get air and fluid
you my want to have something to keep the fluid from ruining everywhere
if this method dose not work or you want to try it first its cleaner
unbolt the master from the fire wall
keep the lines connected
be sure to have fluid in the master
tip the master up until the line has a little downward angle
put pressure on the plunger and open the bleeder on the slave just like your standard bleed but no loops for the air to get trapped in
this should fix you air problem
CF Veteran
Joined: Nov 2008
Posts: 2,473
Likes: 9
From: Paso Robles Ca
Year: 1991
Model: Cherokee
Engine: 4.0
Dan, thanks for the input and help. You are one of the few people on here that seems to really know something. It must be a bunch of kids with nothing better to do. Someone starts a thread about a jeep racing another car and there's dozens of posts. Someone has a real question and hardly nothing. Do you know of any other jeep forums for grown-ups that actually know how to turn a wrench?
Again thanks for your time and help. It is appreciated.
Again thanks for your time and help. It is appreciated.
and you down others about there mechanical capability's when you cant even fix your own simple hydraulic problem
Senior Member
Joined: Dec 2008
Posts: 510
Likes: 0
From: Norco CA.
Year: 1991 XJ SPORT 2 DR.
Model: Cherokee
Engine: 4.0 600 HP
I have bled the lines and checked for leaks but can't find any... fluid is staying full in the master.
Original question was if anyone else had the problem and if the fix was replacing the master or slave cylinder. I have no problem doing either but don't want to spend the time or cash if anyone else had the problem and fixed it by replacing one or the other.
My jeep has an AX-15 transmission and has a bleeder valve coming off the slave. I may just start with all new fluid and re-bleed before changing out the slave.
Didn't mean any disrespect, just wasn't getting any posts and was having a bad day. My apologies.
Original question was if anyone else had the problem and if the fix was replacing the master or slave cylinder. I have no problem doing either but don't want to spend the time or cash if anyone else had the problem and fixed it by replacing one or the other.
My jeep has an AX-15 transmission and has a bleeder valve coming off the slave. I may just start with all new fluid and re-bleed before changing out the slave.
Didn't mean any disrespect, just wasn't getting any posts and was having a bad day. My apologies.
i have the same set up as you, mine was doing that same thing, loosing
clutch disengagement. my clutch and slave are brand new so i crossed that out, so i replaced the master and bled the fu** out of it, about a beer can full, till the air was gone. seems to be fine now.
note make sure the lines are tight at the slave.
clutch disengagement. my clutch and slave are brand new so i crossed that out, so i replaced the master and bled the fu** out of it, about a beer can full, till the air was gone. seems to be fine now.
note make sure the lines are tight at the slave.

Good information and thanks..... I think I will start here.
CF Veteran
Joined: Nov 2008
Posts: 2,473
Likes: 9
From: Paso Robles Ca
Year: 1991
Model: Cherokee
Engine: 4.0
I have bled the lines and checked for leaks but can't find any... fluid is staying full in the master.
Original question was if anyone else had the problem and if the fix was replacing the master or slave cylinder. I have no problem doing either but don't want to spend the time or cash if anyone else had the problem and fixed it by replacing one or the other.
My jeep has an AX-15 transmission and has a bleeder valve coming off the slave. I may just start with all new fluid and re-bleed before changing out the slave.
Didn't mean any disrespect, just wasn't getting any posts and was having a bad day. My apologies.
Original question was if anyone else had the problem and if the fix was replacing the master or slave cylinder. I have no problem doing either but don't want to spend the time or cash if anyone else had the problem and fixed it by replacing one or the other.
My jeep has an AX-15 transmission and has a bleeder valve coming off the slave. I may just start with all new fluid and re-bleed before changing out the slave.
Didn't mean any disrespect, just wasn't getting any posts and was having a bad day. My apologies.
Senior Member
Joined: Dec 2008
Posts: 510
Likes: 0
From: Norco CA.
Year: 1991 XJ SPORT 2 DR.
Model: Cherokee
Engine: 4.0 600 HP
theirs a lot of smart guys on here that work on their jeeps and try to help.
Last edited by mark's91-XJ; May 17, 2009 at 11:59 PM.
CF Veteran
Joined: Nov 2008
Posts: 2,473
Likes: 9
From: Paso Robles Ca
Year: 1991
Model: Cherokee
Engine: 4.0
Was $100 at the place I buy all of my parts from but found one for $52 and they did a price match.... it wasn't plastic either like the oem, which I though was kind of cool.... I think it's cast aluminum.
Seasoned Member
Joined: Jan 2009
Posts: 443
Likes: 2
From: Prescott, AZ
Year: 1996
Model: Cherokee
Engine: 4.0L
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