2007 z06 clutch not comming up
Thread Starter
Drifting
Joined: Nov 2014
Posts: 1,973
Likes: 108
From: Switzerland
2007 z06 clutch not comming up
car has been sitting. on first drive clutch stuck to the floor. after i pulled it up it was fine. same happened several times. then it it started sometimes to come up, but not all the way (maybe 1-2" short), in between it was normal. now, after about 50-100 miles, its good. no problems.
im very curious what goes on mecanically/hydraulically to make the clutch act like that and then to "fix itself" (hopefully). i read a lot and talked to people, not really finding an answer, speculations ranging from spring/excenter on pedal to neccessary clutch replacement.
thoughts?
im very curious what goes on mecanically/hydraulically to make the clutch act like that and then to "fix itself" (hopefully). i read a lot and talked to people, not really finding an answer, speculations ranging from spring/excenter on pedal to neccessary clutch replacement.
thoughts?
Le Mans Master
Joined: Aug 2009
Posts: 5,465
Likes: 1,048
From: Chester County Pennsylvania
2025 C5 of the Year Finalist - Unmodified
2025 Corvette of the Year Finalist - Modified
2024 C6 of the Year Winner - Modified
2020 C5 of the Year Finalist - Unmodified
There is a service bulletin/recall that was issued on the C6 for the clutch master cylinder replace. Your master clutch cylinder needs to be replaced. Do a quick search on the Forum or Google and you will find all the info you need. 
Safety Car
Joined: May 2016
Posts: 4,628
Likes: 1,818
From: Erlanger, Kentucky
Pretty easy to replace. Remove front driver's side wheel. Remove wheel well access panel. Disconnect connecting rod from clutch pedal inside the car. Disconnect clutch line going to master; it has a clip and uses a quick disconnect that has a valve that will close when not connected. Undo two nuts/bolts securing the master. Remove and replace with the new master. Re-install everything.
The new part comes pre-filled with fluid. And the hardest part is getting the clutch lines re-connected. Needs a bit of force and is somewhat difficult to get leverage in the small space. You will know the lines are connected once they make an audible click.
I replaced mine a couple of years ago. Took about an hour.
Melting Slicks
Joined: Mar 2006
Posts: 2,250
Likes: 298
From: Woodbury MN
This could also be the result of dirty clutch fluid and the fix may be as easy as replacing the clutch fluid. Do a search for 'Ranger method' which details the process of replacing the fluid. I would do that first. I have a 2006 Z06 with 235k miles on it and have never replaced the clutch master assembly.
Drifting
Joined: Sep 2000
Posts: 1,581
Likes: 416
From: Fulshear TX
I will disagree with all of the above and state that sometimes the above potential solutions do not fix a low clutch pedal or one that sticks to the floor. I tried them all with zero success on my 2008 Z06. Rangering the clutch fluid, revised clutch master assembly (black reservoir). hiring a dealer to bleed the clutch hydraulics, and the only thing that fixed mine was replacing the whole assembly with an aftermarket clutch. I will say that the only time my clutch pedal would sink partway or fully to the floor was to get the clutch really hot, which only occurred when running my car on the track. This was not caused by excessive shifting or any slippage of the clutch; it was driven by heat even with no shifting. I now have a Monster LT-1 twin clutch and the problem has never recurred.
Race Director
Joined: Dec 2005
Posts: 11,221
Likes: 922
From: Carlsbad Ca
I have a 2006 Z06 with 235k miles on it and have never replaced the clutch master assembly.
Le Mans Master
Joined: Oct 2007
Posts: 7,437
Likes: 961
From: Tennessee/Rhode Island
This could also be the result of dirty clutch fluid and the fix may be as easy as replacing the clutch fluid. Do a search for 'Ranger method' which details the process of replacing the fluid. I would do that first. I have a 2006 Z06 with 235k miles on it and have never replaced the clutch master assembly.
Absolutely do the "ranger method" FIRST before anything else! It is literally so easy to do AND costs almost nothing but brake fluid, a very small amount, no less.
HINT: Exchange the Clutch brake fluid YEARLY with the ranger method and MANY (not all) clutch issues will be prevented........
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski