Ok im going to make this as detailed as possible so someone can help me diagnose this issue im having

Over the course of 1 week ive been slowly losing clutch pedal pressure till 2 days ago when I lost it completely...It first started out with having a spongy clutch at start up and then once the car was at normal operating temp clutch was firm and working normally...the clutch pedal stayed like that till the last couple days when it would just sink to the floor at startup and eventually gain pressure after driving for a while...and now its just gone.

I replaced the CMC when i first got the car less than a year ago...no signs of leaking inside the car or outside to this day.

I just replaced the CSC less than 3 hours ago assuming it had a leak and was leading to air getting into the lines

After putting in the new CSC me and a buddy bled the lines for what seemed like an eternity...end of story is there was always air in the lines and the pedal wouldn't come up. As far as I see there are no leaks in the CSC, CMC, or any of the connecting lines.

Has anybody had any issues like this? Ive tried searching various forums and can't find much info...my best guess is that im going to have to replace the clutch

btw to my knowledge it has a XTD Stage 3 clutch

 

You probably still need to continue bleeding if all the connections are tight. Took me and a buddy a good 15-20minutes to get fluid running correctly through the lines after we had completely cleared all the lines of fluid. You pump the clutch pedal a few times, while pressing it to the floor you quickly crack and retighten the bleeder screw. Literally only leave it open for like 1/2 second. Keep repeating this process until you final start seeing fluid come out...then leave it open for 1 second...once all air seems to be out of the lines drive it for a day and then rebleed. It takes forever to get the fluid through.

 

ya we actually bled it just like that for over an hour and over time it seemed to get better ill deff give it another go tomorrow

 

Yea don't get discouraged...it takes a long time...I usually do 4 pumps of the clutch then hold it to the floor and bleed. Don't forget to keep filling the reservoir.

 

ttt

 

had the same exact problem with a 94 that had an xtd stage 3. clutch felt like it wasn't grabbing until one day about 2 weeks after it started it went completely. cmc and csc were both fine, but the day it went out i was driving, parked at a friends house, went back to it 3-4 hours later and all the fluid was gone in the cmc, yet it had no visible leaks. i think it had something to do with the weather...

 

whatd you end up doing?

 

Yeah clutch hydraulics are funny stuff. Couple weeks ago it took me over an hour to bleed out a wilwood 1" master and a CNC billet slave. The damn MC just would NOT pump any fluid, regardless of either of the bleeders.. and theres so little fluid volume you really do have to crack that bleeder and close it as quick as you can before the pressure drops or its going to take it back in..even if you have a catch can, the bubbles are so tiny they dont just float out.

 

i fried the clutch because i drove it like that, so i had to get a new clutch kit and spent forever bleeding the lines...

 

Like Frodo and I said...it can take a LONG time to bleed and you have to bleed it quickly. Crack it open for a half second and close it again.