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Old 05-23-2012, 10:49 AM   #1
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what's wrong with my clutch pedal?

hey guys!

So last MOnday the clutch pedal got stuck.. not all the way in, but like half way... there's play on it, I can actually "lift it" to where the normal position should be... I haven't noticed anything else besides that.. it runs normal.. but I know it may be a problem and I dont want to take any risks..

what could it be? I checked the deposit and it got enough liquid..

can I still drive it?

it's a 98, 4.0 if that helps

thanks for the help !

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Old 05-23-2012, 11:41 AM   #2
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Look on the ground between the motor and bell housing... see any fluid? You may have a slave cylinder going south

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Old 05-23-2012, 12:15 PM   #3
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Quote:
Originally Posted by N39-W120 View Post
Look on the ground between the motor and bell housing... see any fluid? You may have a slave cylinder going south
will check.. but I would have thought that the fluid in the main cylinder will look low?

Just checked on Quadratec and they only sell the whole set of master and slave and I thought it was going to be less money $200 !

http://www.quadratec.com/products/52007_0007.htm
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Old 05-23-2012, 01:37 PM   #4
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I went through a few in my old '87.... when it first happened the resivour looked ok, but after about a day or 2 she would be dry and pedal all the way to the floor.
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Old 05-23-2012, 08:48 PM   #5
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check the connection between the clutch and the master cylinder. There is a bar, that clips to pedal, that goes throughthe firewall to master cylinder. There is a clutch safety switch on that rod...its just a long plastic sleeve that is over the rod. Everything look right?

you can undo the slave from the bellhousing...two bolts, dry in there? is the piston on the slave recessed in the slave. Dont push the pedal while its out, you can force the piston out to far, but you should be able to push the piston in and out, have someone watch your reservoir, watch for air.

The new slaves come with fluid in them and ready to go, much easier than putting the pieces together and working the air out.

usually a slave works or it don't, never heard of a half pedal, might be in the linkage between the pedal and master i would think. there is a small clip that holds the pedal to the master cylinder push rod, those can go south, but you wouldn't get a half pedal...but it may have fallen out and gotten caught in a weird position...
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Old 05-23-2012, 10:23 PM   #6
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So I looked near the pedal and I saw this plastic thing


Click image for larger version

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It's loose, It moves and it's not fixed in one place. It's dry, I didn't see any oil anywhere.. I guess that's the part you were mentioning.. Should I replace both master slave and the housing?
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Old 05-23-2012, 10:34 PM   #7
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that is your clutch safety switch, it does ride loose on the rod...when you push the pedal in it contacts it and makes it so you can start the jeep....i was thinking it might of been skewered, but it looks good.
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Old 05-23-2012, 10:55 PM   #8
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Quote:
Originally Posted by Kevbz
that is your clutch safety switch, it does ride loose on the rod...when you push the pedal in it contacts it and makes it so you can start the jeep....i was thinking it might of been skewered, but it looks good.
Got it so i have to check what you suggested .. I will have to wait until Tuesday. will update what I find.. Thanks for the info!
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Old 05-24-2012, 10:20 AM   #9
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I don't have a manual tx so I can't check and I'm just guessing, but most clutches I've seen (non-Jeep) have a return spring that brings the clutch back to the top. If your clutch pedal seems to work okay, just not returning to the top, I recommend you look for a broken or loose spring. Especially since it seems to have happened suddenly.
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Old 05-29-2012, 08:00 PM   #10
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Update

We took the clutch apart and saw the following.. ( i did the editing with my iphone so excuse my art! Hehe )


It seems that something goes inside.. Something that should prevent the pin head from coming off ..
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This other picture shows all the parts there were with the pin ...

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I think that something is missing because the pin head looks used, like if there was something attached to it.. But there was nothing else there..
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Old 05-29-2012, 08:15 PM   #11
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yep, your missing a whitish plastic knob on it i do believe!
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Old 05-29-2012, 10:39 PM   #12
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Quote:
Originally Posted by Kevbz
yep, your missing a whitish plastic knob on it i do believe!
In the first picture I wonder if there's something that should go there, there are like two spaces inside the rubber piece ... Other than that I dont see how the pin head will remain attached to the master cylinder...

None of the pictures in google shows that rubber piece from a good angle...

For now, we placed a little spring in the pedal that will keep it tight into its position... The clutch, master and slave, seems to be working just fine..

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