C6 clutch issues
Thread Starter
Pro
Joined: Dec 2004
Posts: 534
Likes: 0
From: New Brunswick
C6 clutch issues
After putting in an LG G5X3 cam, headers, etc (approx 100 extra HP), my clutch is acting funny.
First problem was when trying a second gear burnout at the drag strip last september, clutch pedal stuck to the floor. That same night I discovered the clutch fluid in the reservoir was low & black. I've since changed it about 10 times.
Today, under hard acceleration, the clutch pedal stuck to the floor again.
I replaced the fluid again, but it feels soft compared to before.
Any ideas?
Denis
First problem was when trying a second gear burnout at the drag strip last september, clutch pedal stuck to the floor. That same night I discovered the clutch fluid in the reservoir was low & black. I've since changed it about 10 times.
Today, under hard acceleration, the clutch pedal stuck to the floor again.
I replaced the fluid again, but it feels soft compared to before.
Any ideas?
Denis
Racer
Joined: Mar 2006
Posts: 464
Likes: 2
From: Dallas TX
St. Jude Donor '12, '14-'15, '17, '20
Your clutch is slipping and will continue until it is replaced. Try not to keep running it hard after the pedal stays on the floor or it will get real hot and melt the slave cylinder. This is what I did.
Racer
Joined: Sep 2008
Posts: 448
Likes: 0
From: West Monroe La. (Fastest Bolt On M6)
mines doing the same thing after adding my cam 2 weeks ago..I'm upgrading to the ls7 clutch and pressure plate..I wonder how you will know if the slave cylinder needs to be replaced??
Tech Contributor
Joined: Jul 2002
Posts: 14,949
Likes: 263
From: St. Louis, MO
St. Jude Donor '08
I had the same problem 3 years ago when I put in the cam. Take out the spring on the pedal assembly under the dash.
I did that 3 years and 25k miles and 380 drag strip runs ago and my stock clutch is still going strong.
And stay on flushing the fluid be fire and after each time you drive the car hard.
These steps have allowed my stock clutch to live a long life.
I did that 3 years and 25k miles and 380 drag strip runs ago and my stock clutch is still going strong.
And stay on flushing the fluid be fire and after each time you drive the car hard.
These steps have allowed my stock clutch to live a long life.
Instructor
Joined: Aug 2009
Posts: 119
Likes: 0
From: Demotte In
stock 2009 clutch issues.
Hello
I have a 2009 vette that is stock and I have noticed since the day I got it the clutch smells all the time and it sticks to the floor sometimes if I have to excellerate hard and at a higer rpm to pull out into traffic from a dead stop.
Also I have noticed that I grind gears shifting every now and then even with the clutch fully depressed.
I think that there is something defective with the clutch in these cars. I am under full warranty. Should I take it to the dealer and have them look at the clutch?
Any thoughts ?
thanks
Ed
I have a 2009 vette that is stock and I have noticed since the day I got it the clutch smells all the time and it sticks to the floor sometimes if I have to excellerate hard and at a higer rpm to pull out into traffic from a dead stop.
Also I have noticed that I grind gears shifting every now and then even with the clutch fully depressed.
I think that there is something defective with the clutch in these cars. I am under full warranty. Should I take it to the dealer and have them look at the clutch?
Any thoughts ?
thanks
Ed
Last edited by 68blueshark; Apr 14, 2010 at 11:44 PM. Reason: mispelled
Tech Contributor
Joined: Jul 2002
Posts: 14,949
Likes: 263
From: St. Louis, MO
St. Jude Donor '08
Hello
I have a 2009 vette that is stock and I have noticed since the day I got it the clutch smells all the time and it sticks to the floor sometimes if I have to excellerate hard and at a higer rpm to pull out into traffic from a dead stop.
Also I have noticed that I grind gears shifting every now and then even with the clutch fully depressed.
I think that there is something defective with the clutch in these cars. I am under full warranty. Should I take it to the dealer and have them look at the clutch?
Any thoughts ?
thanks
Ed
I have a 2009 vette that is stock and I have noticed since the day I got it the clutch smells all the time and it sticks to the floor sometimes if I have to excellerate hard and at a higer rpm to pull out into traffic from a dead stop.
Also I have noticed that I grind gears shifting every now and then even with the clutch fully depressed.
I think that there is something defective with the clutch in these cars. I am under full warranty. Should I take it to the dealer and have them look at the clutch?
Any thoughts ?
thanks
Ed
Racer
Joined: Mar 2006
Posts: 464
Likes: 2
From: Dallas TX
St. Jude Donor '12, '14-'15, '17, '20
I had the same problem 3 years ago when I put in the cam. Take out the spring on the pedal assembly under the dash.
I did that 3 years and 25k miles and 380 drag strip runs ago and my stock clutch is still going strong.
And stay on flushing the fluid be fire and after each time you drive the car hard.
These steps have allowed my stock clutch to live a long life.
I did that 3 years and 25k miles and 380 drag strip runs ago and my stock clutch is still going strong.
And stay on flushing the fluid be fire and after each time you drive the car hard.
These steps have allowed my stock clutch to live a long life.
all of these will help, but are really band aids. I removed the spring and was thinking problem mostly solved, but I was wrong. Make sure if you remove the spring that the pedal is always returning to the top. If it hangs an inch or so you will have bearing problems later. Or at least I did.
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Tech Contributor
Joined: Jul 2002
Posts: 14,949
Likes: 263
From: St. Louis, MO
St. Jude Donor '08
all of these will help, but are really band aids. I removed the spring and was thinking problem mostly solved, but I was wrong. Make sure if you remove the spring that the pedal is always returning to the top. If it hangs an inch or so you will have bearing problems later. Or at least I did.To the OP, search this board for people having trouble with aftermarket clutches with power levels like yours and mine before you replace your factory clutch.....Sparo2, Isaih48 off the top of my head.
I always recommend this free solution as a first line of attack.
Thread Starter
Pro
Joined: Dec 2004
Posts: 534
Likes: 0
From: New Brunswick
Well, my factory clutch has 44445 daily driver miles, 380 5,000 to 6,000 rpm drag strip launches on it and it still drives me back and forth tomwork every day and gets 1.5 60 foots at will, so I am living proof that removing the spring doesn't kill the clutch. I do from time to time make sure the clutch is all the way up. One time my cruise control wouldn't work and that instance the clutch pedal wasn't all the way up.
To the OP, search this board for people having trouble with aftermarket clutches with power levels like yours and mine before you replace your factory clutch.....Sparo2, Isaih48 off the top of my head.
I always recommend this free solution as a first line of attack.
To the OP, search this board for people having trouble with aftermarket clutches with power levels like yours and mine before you replace your factory clutch.....Sparo2, Isaih48 off the top of my head.
I always recommend this free solution as a first line of attack.
Thanks once again.Do you have a quick how-to on removing that spring?
Tech Contributor
Joined: Jul 2002
Posts: 14,949
Likes: 263
From: St. Louis, MO
St. Jude Donor '08
Tech Contributor
Joined: Jul 2002
Posts: 14,949
Likes: 263
From: St. Louis, MO
St. Jude Donor '08
Heh check out my post on the topic....3 years ago.
http://forums.corvetteforum.com/c6-t...d-changes.html
Thread Starter
Pro
Joined: Dec 2004
Posts: 534
Likes: 0
From: New Brunswick
Sure did fix it. Works great to this day and I've continued to whittle down my times on my beloved stock clutch.
Heh check out my post on the topic....3 years ago.
http://forums.corvetteforum.com/c6-t...d-changes.html
Heh check out my post on the topic....3 years ago.
http://forums.corvetteforum.com/c6-t...d-changes.html
Tech Contributor
Joined: Jul 2002
Posts: 14,949
Likes: 263
From: St. Louis, MO
St. Jude Donor '08
Thread Starter
Pro
Joined: Dec 2004
Posts: 534
Likes: 0
From: New Brunswick
I had the same problem 3 years ago when I put in the cam. Take out the spring on the pedal assembly under the dash.
I did that 3 years and 25k miles and 380 drag strip runs ago and my stock clutch is still going strong.
And stay on flushing the fluid be fire and after each time you drive the car hard.
These steps have allowed my stock clutch to live a long life.
I did that 3 years and 25k miles and 380 drag strip runs ago and my stock clutch is still going strong.
And stay on flushing the fluid be fire and after each time you drive the car hard.
These steps have allowed my stock clutch to live a long life.
I finally got around to taking the spring out, I also replaced the fluid (do so every 2 weeks or so), then went out for a rip. Clutch feel is def. better, but it still sticks at high RPM. I think it's time to face the facts that my clutch is gone... at 31k miles
Tech Contributor
Joined: Jul 2002
Posts: 14,949
Likes: 263
From: St. Louis, MO
St. Jude Donor '08
hi again Joe,
I finally got around to taking the spring out, I also replaced the fluid (do so every 2 weeks or so), then went out for a rip. Clutch feel is def. better, but it still sticks at high RPM. I think it's time to face the facts that my clutch is gone... at 31k miles
I finally got around to taking the spring out, I also replaced the fluid (do so every 2 weeks or so), then went out for a rip. Clutch feel is def. better, but it still sticks at high RPM. I think it's time to face the facts that my clutch is gone... at 31k miles
And keep us posted on what you decide to go with if it doesn't come back.
Thread Starter
Pro
Joined: Dec 2004
Posts: 534
Likes: 0
From: New Brunswick
Stay on that fluid, change it after each time you drive the car for a few weeks....while you decide on a clutch. Might get pleasantly surprised as it cleans out and you aren't out anything but a couple of bucks for fluid.
And keep us posted on what you decide to go with if it doesn't come back.
And keep us posted on what you decide to go with if it doesn't come back.
Whats your take on the window clip stopper mod, to 'raise' the floor? would that help too?
I'm pretty worried about aftermarket clutches myself... even swapping for an Ls7 setup.
Team Owner
Joined: Feb 2000
Posts: 53,490
Likes: 77
From: Arizona
hi again Joe,
I finally got around to taking the spring out, I also replaced the fluid (do so every 2 weeks or so), then went out for a rip. Clutch feel is def. better, but it still sticks at high RPM. I think it's time to face the facts that my clutch is gone... at 31k miles
I finally got around to taking the spring out, I also replaced the fluid (do so every 2 weeks or so), then went out for a rip. Clutch feel is def. better, but it still sticks at high RPM. I think it's time to face the facts that my clutch is gone... at 31k miles
It's a 50 cent window track lock that clamps on backwards to the clutch arm nubbin. So that the head of the bolt engages the floorboard about an inch sooner. It has worked for me, and my stock clutch that has a tendency to stick to the floor:
http://forums.corvetteforum.com/phot...00/ppuser/6747
Put the spring back! It has nothing to do with the clutch sticking to the floor.
Thread Starter
Pro
Joined: Dec 2004
Posts: 534
Likes: 0
From: New Brunswick
Try this to lessen over centering and reduce clutch throw.
It's a 50 cent window track lock that clamps on backwards to the clutch arm nubbin. So that the head of the bolt engages the floorboard about an inch sooner. It has worked for me, and my stock clutch that has a tendency to stick to the floor:
http://forums.corvetteforum.com/phot...00/ppuser/6747
Put the spring back! It has nothing to do with the clutch sticking to the floor.
It's a 50 cent window track lock that clamps on backwards to the clutch arm nubbin. So that the head of the bolt engages the floorboard about an inch sooner. It has worked for me, and my stock clutch that has a tendency to stick to the floor:
http://forums.corvetteforum.com/phot...00/ppuser/6747
Put the spring back! It has nothing to do with the clutch sticking to the floor.