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Old Oct 28, 2016 | 12:12 PM
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ok last night my clutch pedal went all the way to the floor . was able to get home looked on innerweb and changed fluid with the ranger method but now it works but do I have air in line or is clutch toast? car just turned 20k and has been driven nice . any help would be great thanks Don
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Old Oct 28, 2016 | 12:19 PM
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At only 20k the clutch itself cant be worn out, well extremely unlikely atleast. More than likely either your clutch master cylinder or the clutch slave cylinder was leaking. How does the clutch feel after changing the fluid?
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Old Oct 28, 2016 | 12:58 PM
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Originally Posted by MY03C5Z
At only 20k the clutch itself cant be worn out, well extremely unlikely atleast. More than likely either your clutch master cylinder or the clutch slave cylinder was leaking. How does the clutch feel after changing the fluid?
when I let it out feels like qtr inch clutch then just play push down almost to the floor before it goes in gear
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Old Oct 28, 2016 | 01:18 PM
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I would try the Ranger method several more times, also pump the clutch pedal repeatedly to see if it helps. If that doesn't work here is the procedure I found for bleeding the clutch, not the easiest job unfortunately....




Bleeding the hydraulic clutch system is necessary whenever the level of fluid in the clutch master cylinder reservoir has been allowed to fall so low that air has been drawn into the master cylinder.


· Clean all dirt and debris from the clutch master cylinder cap to ensure that no foreign substances will enter the system.
·
· Remove the clutch master cylinder reservoir cap with diaphragm.
·
· Fill the clutch master cylinder reservoir with clutch hydraulic fluid GM P/N 12345347, (Canadian P/N 10953517), or equivalent, if necessary.
·
· Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
·
· Remove the catalytic converter. Refer to Catalytic Converter Replacement in Engine Exhaust.
·
· Remove the driveline tunnel closeout panel. Refer to Driveline Tunnel Closeout Panel Replacement in Propeller Shaft.
·
· Have an assistant depress the clutch pedal fully and hold.
·
· Loosen the bleeder screw on the clutch actuator cylinder to purge air.
·
· Tighten the bleeder screw.
·
· Release the clutch pedal.
·
· Repeat steps 7 through 10 until all air is completely evacuated. Check and refill the clutch master cylinder reservoir with clutch hydraulic fluid GM P/N 12345347, (Canadian P/N 10953517), or equivalent, as necessary in order to prevent air from being drawn through the clutch master cylinder.
·
· Fill the clutch master cylinder reservoir with clutch hydraulic fluid GM P/N 12345347, (Canadian P/N 10953517), or equivalent, if necessary.
·
· Install the driveline tunnel closeout panel. Refer to Driveline Tunnel Closeout Panel Replacement in Propeller Shaft.
·
· Install the catalytic converter. Refer to Catalytic Converter Replacement in Engine Exhaust.
·
· Lower the vehicle.

Last edited by MY03C5Z; Oct 28, 2016 at 01:20 PM.
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Old Oct 28, 2016 | 02:20 PM
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If the clutch fluid was neglected prior to you owning the car the master cyl is prob all gunked up with the clutch dust and it's like tar. I cut open my old master cyl when I installed my new one and I couldn't believe how much sludge was inside the master. No way to get it out. Just buy a new stock one and see what that does and do the ranger flush method. People talk up the tick master cyl kit. I had it makes the clutch super grabby so I went to the stock bore 3/4 " tilton master and it's way better. In retrospect I should have just gotten a new stock one vs messing around with the tick/tilton setup.
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Old Oct 28, 2016 | 02:40 PM
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Does your car have performance mods? Higher than stock HP will often lead to a clutch upgrade. (this' after trying a new MC/Ranger protocol)
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Old Oct 28, 2016 | 03:56 PM
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Originally Posted by zeevette
Does your car have performance mods? Higher than stock HP will often lead to a clutch upgrade. (this' after trying a new MC/Ranger protocol)
no car is stock. pumped the crap out of it felt like it was good only to take it out and have the pedal go to the floor again! will take a look at master when I get home maybe it or the line is cracked . no puddles under it though
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Old Oct 29, 2016 | 07:59 PM
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is this happening at high rpm/wot shifts?
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Old Oct 30, 2016 | 04:10 AM
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My 01 Z06 has 45k on it. When I drive a little spirited the clutch goes almost to the floor and grabs quick. If I put my foot under the pedal, I can pull it back up but it still engages the same. After driving normal again clutch is back to normal.
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Old Oct 30, 2016 | 11:08 AM
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Originally Posted by neutron82
is this happening at high rpm/wot shifts?
normal driving .can lift pedal up when its stuck works fine for awhile then sticks again
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Old Oct 31, 2016 | 10:31 AM
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Originally Posted by HT1663WB
My 01 Z06 has 45k on it. When I drive a little spirited the clutch goes almost to the floor and grabs quick. If I put my foot under the pedal, I can pull it back up but it still engages the same. After driving normal again clutch is back to normal.
I dealt with this garbage for years. There are really two things going on. One is the hydraulics, but that's not the whole story. You can have all new hydraulics and a brand new stock clutch and still get a low pedal on the very first wide open pull to redline even when only making stock power. I know because that's what my car did and there are countless other tales of people on this forum with pedal problems without hydraulic problems. Its also the pressure plate. Going aftermarket is the only way to permanently solve this.
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Old Nov 3, 2016 | 03:30 AM
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Just for the heck of it I took the spring off the clutch pedal. Pedal feel is much better. condition still exists but its not as noticeable.
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Old Nov 7, 2016 | 02:36 PM
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for f*ck ups see vid 2


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Old Nov 10, 2016 | 07:45 PM
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was able to work on car today!someone was nice and installed a speed bleeder .wow the black crap keeps coming out clutch works for awhile then goes to floor. is it time for new master?
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Old Nov 11, 2016 | 10:21 AM
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no, keep flushing fluid till its clean coming out. it might take the whole bottle.
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Old Nov 14, 2016 | 09:03 PM
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From my experience the main cause of the pedal sticking to the floor is over extending the master cylinder. I do agree with keeping the fluid as clean as possible, changing it often, but every since I put a pedal stop on it I've not had one issue. This is something that was happening to me often until I did this. Just keep the pedal at least 1/2" or so off the floor. Did wonders for me.
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Old Nov 25, 2016 | 01:44 PM
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Had to go with new master .Wow what a difference it made car shifts great clutch has never felt this good !thanks everyone !!!!!!
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Old Nov 25, 2016 | 03:43 PM
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Originally Posted by trouble68
Had to go with new master .Wow what a difference it made car shifts great clutch has never felt this good !thanks everyone !!!!!!
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Old Apr 26, 2023 | 04:42 AM
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When the clutch pedal on a C5 Corvette sticks to the floor, it typically means a problem with the clutch hydraulic system. The C5 Corvette has a hydraulic clutch system that uses a master cylinder to pressurize hydraulic fluid, which then activates the slave cylinder and disengages the clutch.

There are a few reasons why the clutch pedal might stick to the floor:
  1. Low fluid level: If the clutch hydraulic fluid level is low, it can cause the clutch pedal to stick. This can happen if there is a leak in the system or if the fluid hasn't been changed in a long time and has become contaminated.
  2. Air in the system: If there is air in the clutch hydraulic system, it can cause the clutch pedal to feel spongy or stick to the floor. Air can enter the system if there is a leak or if the fluid level gets too low.
  3. Worn clutch components: If the clutch disc, pressure plate, or release bearing is worn or damaged, it can cause the clutch to slip or fail to disengage fully. This can make it difficult or impossible to shift gears, and the clutch pedal may stick to the floor.
  4. Failed master or slave cylinder: If the master or slave cylinder fails, it can cause the clutch pedal to stick or feel spongy. This can happen if the seals inside the cylinder fail, causing fluid to leak.
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Old Jun 27, 2023 | 08:53 AM
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If your clutch pedal went all the way to the floor, it's possible that there may be air in the hydraulic clutch system, Hydraulic fluid leak, or Clutch component failure your car has relatively low mileage and has been driven gently, it's less likely that the clutch itself is worn out at this point. However, mechanical failures can occur unexpectedly, so it's important to consider all possibilities.also, visit carwooow
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