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Unread 01-19-2014, 07:26 AM   #1
dannytogo
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1995 YJ Wrangler 
 
Join Date: Jan 2014
Location: Savannah, GA
Posts: 5
Clutch problems - PLEASE HELP

I have a 95 4.0. Last week my clutch got spongy and then the pedal lost all pressure. I replaced the master cylinder and slave cylinder but still no pedal pressure. Any ideas?

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Unread 01-19-2014, 07:28 AM   #2
Mark05059
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1989 YJ Wrangler 
 
Join Date: Mar 2009
Location: quechee Vermont
Posts: 4,345
did you get the prebled master and slave unit or individual pieces? Also please fill in you jeep profile.
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1998 ZJ 5.2 Auto

1989 Wrangler Black Bone Stock 2.5l 5spd
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Unread 01-19-2014, 01:13 PM   #3
dannytogo
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1995 YJ Wrangler 
 
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Location: Savannah, GA
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After final installation, I bled the system.
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Unread 01-19-2014, 01:54 PM   #4
Mark05059
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1989 YJ Wrangler 
 
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Location: quechee Vermont
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so did you put them in as a 1 piece setup with the tube and all installed or more then one piece?
__________________
1998 ZJ 5.2 Auto

1989 Wrangler Black Bone Stock 2.5l 5spd
/l , [____],
|---L--[]lllllll[]-
()_) ()_)==O=)_)
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Unread 01-19-2014, 02:18 PM   #5
GrEmLiN
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1987 YJ Wrangler 
 
Join Date: Feb 2008
Location: Southwest, Connecticut
Posts: 128
I could have sworn I posted a reply to this yesterday asking the same question...

If you used the one piece master/hose/slave it's pre-filled with fluid and pre-bled, you just install, step on the clutch and top off the fluid.

This setup runs $130 or so if I recall.

I have an OEM replacement plastic reservoir master with a stainless braided hose from Advance Adapters and I bought one of their AX15/NV3550 external slaves. If you do end up needing a hose, I recommend the AA one it feels really good and consistent, the braided stainless cuts down on the spongy feel a bit. Same with brake hoses. -- The 42 or 48 or whatever inch hose they sell is barely long enough, it's what I used and I wish I either had a 180* brake line fitting on the end to sweep back into the clutch slave, or that I'd gotten their 60 inch hose kit and had a sweeping bend instead of having a taught hose.

Note, a 3-piece system is harder to bleed, especially when the slave doesn't have a bleeder port. You can either use a vacuum bleeder at the top to suck the air bubbles out or bench bleed it really friggin good before installing and don't shake it around/tilt it.
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Unread 01-20-2014, 06:49 AM   #6
dannytogo
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1995 YJ Wrangler 
 
Join Date: Jan 2014
Location: Savannah, GA
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Quote:
Originally Posted by Mark05059
so did you put them in as a 1 piece setup with the tube and all installed or more then one piece?
i bought the individual components.
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Unread 01-20-2014, 06:55 AM   #7
Latefreight727
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1991 YJ Wrangler 
 
Join Date: Jul 2013
Location: Arcadia, Fl
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I bought the one piece system from 4WD. It didn't come with fluid. I had to fill and bleed. Works great. It has the bleeder on the external slave.
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Unread 01-20-2014, 08:23 AM   #8
Mark05059
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1989 YJ Wrangler 
 
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Location: quechee Vermont
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Quote:
Originally Posted by dannytogo View Post
i bought the individual components.
then you still have air in the system... keep bleeding
__________________
1998 ZJ 5.2 Auto

1989 Wrangler Black Bone Stock 2.5l 5spd
/l , [____],
|---L--[]lllllll[]-
()_) ()_)==O=)_)
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Unread 01-20-2014, 09:10 AM   #9
Latefreight727
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1991 YJ Wrangler 
 
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Location: Arcadia, Fl
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Bleed it until you think it is good. Then bleed it some more. It took a long time to get all the air out.
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Unread 01-20-2014, 12:23 PM   #10
GrEmLiN
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1987 YJ Wrangler 
 
Join Date: Feb 2008
Location: Southwest, Connecticut
Posts: 128
Or take it to a shop that has a power bleeder (preferably vacuum bleeder in this case) and that should make quick work of it. Have a mechanic do it under the table for a few bucks?
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Unread 01-20-2014, 12:39 PM   #11
mylogylo
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1994 YJ Wrangler 
 
Join Date: May 2007
Location: Dillon, Colorado
Posts: 380
I have a 94 and have had to replace the master and the slave several times. Always just the individual parts. I've never had a problem bleeding it though. Just pump a whole lot and it gets good. I'm talking maybe 5-10 minutes of pumping max. Most of the air came out at the top most pedal travel if that makes sense...rattle it back and forth at the top of the pedal travel. You can see the air coming out into the res. Pour a little fluid in to keep it full and you should be good. The only couple of problems I can think of is the hose is leaking somewhere, or...once I didn't line up the push rod on the slave right and it wasn't touching the clutch fork or whatever at all so I had very little pressure.
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