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Old 02-11-2013, 11:26 AM   #1
Join Date: Feb 2013
Posts: 2
Clutch pops half way down

I have a 99' Sahara and yesterday I noticed as I press the clutch, when it gets about halfway down it pops. I can feel it in the peddle and with the jeep off it does it also. I also can here a thud sound almost like its coming from the other side of the firewall at the master cylinder? It has fluid in it and I didn't see anything looking loose or out of place both, under the dash and on the otherside of the firewall. Tension seems to stay the same the whole time but it might have a little resistance right befor the 'pop' then it's its normal again. No problem switching gears or anything. Not very knowledgable with all the mechanics but very capable of turning a wrench and working on it myself with a little direction. Thanks in advance for any insight or advice you can help me with!

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Old 02-11-2013, 12:43 PM   #2
Join Date: Mar 2011
Posts: 426
Unfortunately what you describe is often the first symptom of a clutch throwout bearing failure. That part is around the main shaft between engine and transmission and can only be serviced by seperating the transmission from the engine, which is complicated by the transfer case and two driveshafts.

You had best plan for a new clutch in the near future. That would include a new throwout bearing, new clutch plate, and new cover. Most times it also means a new flywheel (because it can't be resurfaced without losing some life on the new clutch).

If you have done a clutch before, even on a 2WD vehicle, you will probably succeed. If you have not, then the TJ is not a good place to learn the basics, and you either need to find some knowledgeable help, or have a mechanic do the job in his shop.

1967 Kaiser Commando
2001 Grand Cherokee WJ
2003 Rubicon TJ
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Old 02-12-2013, 01:02 PM   #3
Join Date: Feb 2013
Posts: 2
Ok thanks for the insight. I've done some research and i think i can handle it so I'm gonna tear into it this weekend and replace clutch. Thanks again.
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Old 02-12-2013, 02:18 PM   #4
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Join Date: Mar 2011
Location: Longmont, CO
Posts: 2,515
It could be the master cylinder or the interlock switch. I'd check that before tearing into the clutch.
CU Boulder Aerospace Engineering
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