I was out in my rail this weekend and noticed that the clutch pedal seemed to feel a bit different. When I press down on it, the first 40% or so seems very soft.. I have an S4 and I am not sure how many disks are in the clutch but it does not seem to slip at all. The pedals are CNC hydraulic. I have not checked the fluid level in the clutch pedal yet but I do plan on checking that. I dont think I have any leaks..

Have any of you experienced this? Any suggestions?

Make sure the locknuts on the slave cyl. are still on it and have not backed off at all. Otherwise, I am sure you have a dual disk setup and the disks may be nearing the end. Did you install a new clutch with the new tranny?

No new clutch.. Where is the lock nut? Is that between peddle and the master cylinder on the peddle mount?

What is weird is that I did not notice it on the first couple trips out. It was my last ride and it just felt different. Nothing gradual..

On the slave cyl. which is on the transmission itself. It might be blue.

It has 2 rods on it generally, they both allow for adjustment and should have locknuts.

I just spoke with my buddy who was the original owner and he said the same thing.. Check the bolt on the side of the slave..

One thing I did notice this weekend besides the clutch peddle was fluid on the side of the engine and on the trans.. I thought it was oil from the breather line on each valve cover. I have a Twin Turbo 5.3 from TurnKey and thought that maybe I had over filled the oil. I spoke to turnkey Friday while I was out at the dunes and was told that when the engine hits the rev limiter that can happen as well as when the oil is over full. From the stick reading, the oil looked over full so we drained some out until it read better.

Now I am wondering if it was hydraulic fluid from a leaking slave.. Could that also cause the peddle to feel this way but still work?

Absolutely. You probabaly have braided lines to it as well. If you climb under your car(put your head right by the slave) have 2nd person push the clutch in/out. If a line is leaking you will most likely hear it or see it.

I would also check your clutch to see if it's adjusted properly.

If it's not your slave, it's probably the master cylinder (at the peddle). I have 2 going back to CNC right now, to be rebuilt. My buddy & I had to replace ours within a few trips of each other & his car was only a few trips old. I hear that CNC has had plenty of problems with these. My peddle kept getting softer & softer, would sometimes stick half way down. Made it real fun to load in the trailer!

Good luck!

I did some more checking and thus far, I know that the plunger or whatever it is called on the slave moves in and out when I press the clutch pedal which leads me to believe that it is not a fluid level issue.. There is a slight bit of peddle pressure that does not move the slave but it is only about 1" of pedal if that.

We did bleed a bit out just to make sure there was no air in the line. The fluid level seemed OK. Not totally to teh top but pretty close. The clutch pedal becomes more difficult to press (feels like the clutch springs) about 1/4 of the way pressed which equates to a little over 1/4" on the plunger of the salve. I can adjust that out via the lock nut but I am reluctant to do that for some reason.. Although that may be exactly what I need to do.. I guess having never dealt with this kind of stuff and all of the clutch horror stories, I am just not sure.
I have been told that there should be a softer area of the pedal prior to the feeling the springs engaging but having no experience with this subject, I dont know what to believe.

The clutch engages or slips at 3/4 of the way down on the pedal which seems about right. I assume if I adjust the slave, the clutch would enguage closer to the top of the pedal.

After all of this, I am not sure if I am just crazy and maybe the peddle was like this before or if somthing really did change. My biggest concern would be the clutch but it seems to work just fine other than the pedal feeling weird

I would assume that you adjust the clutch via the lock not on the slave? Is that correct?

Yes thats how you adjust the clutch.. Make sure that there is 1/4" of play in the slave cylinder where it connects to the arm. If its tight or theres no play that could be the reason for your clutch slipping