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First problem with my vette

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Old Mar 20, 2005 | 02:10 PM
  #1  
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Default First problem with my vette

Last night was the third time this has happened since Friday. During a WOT run right to redline, banging gears, not power shifting, the engine just raced after shifting. Then I took my foot off the gas and it went into gear. This happened with the traction on and off. It did it from first to second on Friday, and third to forth, and second to third last night. I almost feels like the clutch was slipping but I don't think that is the case because you can feel it clunk into gear after I take my foot off the gas. Any ideas what this could be
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Old Mar 20, 2005 | 02:18 PM
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Originally Posted by vettejoel
Last night was the third time this has happened since Friday. During a WOT run right to redline, banging gears, not power shifting, the engine just raced after shifting. Then I took my foot off the gas and it went into gear. This happened with the traction on and off. It did it from first to second on Friday, and third to forth, and second to third last night. I almost feels like the clutch was slipping but I don't think that is the case because you can feel it clunk into gear after I take my foot off the gas. Any ideas what this could be
Your clutch is sticking down at high revs. This is a known problem with the stock clutch. While GM is working on a fix, an expedient fix you can apply now is to reduce the overtravel of the clutch pedal by using a spacer block under the clutch pedal, or a limit screw in the linkage. You want the pedal to go down enough to engage the switch which lets the engine start, but no further. This will keep the clutch diaphram fingers from overcentering, and will prevent the clutch from sticking down at high revs.
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Old Mar 20, 2005 | 02:22 PM
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Default Mr Dog to the Rescue

Dog, good thing you replied to Joel first. I was going to tell him that he was getting old and forgot to let the clutch out. You know, "The Old Frozed Clutch Foot Problem".

Happen to anyone else? After Mkt clutch will fix this? If so which would you recommend?
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Old Mar 20, 2005 | 02:22 PM
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Take it in asap. You want to make sure the clutch is fully depressed upon each shift, although a good idea, I'm not sure I'd do the above mentioned temp fix....why take a chance?

Best of luck, keep us posted.

Last edited by 500; Mar 20, 2005 at 02:24 PM.
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Old Mar 20, 2005 | 02:23 PM
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Originally Posted by JFTaylor
Dog, good thing you replied to Joel first. I was going to tell him that he was getting old and forgot to let the clutch out. You know, "The Old Frozed Clutch Foot Problem".

Happen to anyone else? After Mkt clutch will fix this? If so which would you recommend?

lol
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Old Mar 20, 2005 | 02:44 PM
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Originally Posted by shopdog
Your clutch is sticking down at high revs. This is a known problem with the stock clutch. While GM is working on a fix, an expedient fix you can apply now is to reduce the overtravel of the clutch pedal by using a spacer block under the clutch pedal, or a limit screw in the linkage. You want the pedal to go down enough to engage the switch which lets the engine start, but no further. This will keep the clutch diaphram fingers from overcentering, and will prevent the clutch from sticking down at high revs.
Good info. Thanks! Now this one gets me going a lot more than the crank pulley issue. This clutch sticking to the floor problem seems a lot more prevalent than the crank pulley problem and what bothers me most is that GM simply cannot seem to do a clutch properly. My 99 was never right and the clutch frequently stuck halfway up. That was a common problem with the C5 all the way to the end of the C5 production and now they have the same problem or worse on the C6. At least with the crank pulley problem, they tried something new by not keying the crank and it led to a few problems. No big deal. Live and learn. With the clutch, they've gone NINE years and still can't get one right. Now THAT bugs me! Seems like after a decade of screwing up, they'd figure out how to make a clutch work properly!

Mike
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Old Mar 20, 2005 | 02:57 PM
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Originally Posted by JFTaylor
Dog, good thing you replied to Joel first. I was going to tell him that he was getting old and forgot to let the clutch out. You know, "The Old Frozed Clutch Foot Problem".

Happen to anyone else? After Mkt clutch will fix this? If so which would you recommend?
Yeah, it is a common problem. An aftermarket clutch will fix it. RAM makes a good one. But be warned, clutch pedal effort will be lots higher. Simply limiting pedal overtravel will allow you to keep the soft effort stock clutch.
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Old Mar 20, 2005 | 04:36 PM
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Originally Posted by JFTaylor
Dog, good thing you replied to Joel first. I was going to tell him that he was getting old and forgot to let the clutch out. You know, "The Old Frozed Clutch Foot Problem".

Happen to anyone else? After Mkt clutch will fix this? If so which would you recommend?
Easy slugger
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Old Mar 20, 2005 | 04:37 PM
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Originally Posted by mikeyc6
Good info. Thanks! Now this one gets me going a lot more than the crank pulley issue. This clutch sticking to the floor problem seems a lot more prevalent than the crank pulley problem and what bothers me most is that GM simply cannot seem to do a clutch properly. My 99 was never right and the clutch frequently stuck halfway up. That was a common problem with the C5 all the way to the end of the C5 production and now they have the same problem or worse on the C6. At least with the crank pulley problem, they tried something new by not keying the crank and it led to a few problems. No big deal. Live and learn. With the clutch, they've gone NINE years and still can't get one right. Now THAT bugs me! Seems like after a decade of screwing up, they'd figure out how to make a clutch work properly!

Mike
It's not the same as the clutch sticking in the C5's. The clutch pedal does come back to the top, in my C5 it stayed down, almost to the floor
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Old Mar 20, 2005 | 04:42 PM
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Originally Posted by mikeyc6
Good info. Thanks! Now this one gets me going a lot more than the crank pulley issue. This clutch sticking to the floor problem seems a lot more prevalent than the crank pulley problem and what bothers me most is that GM simply cannot seem to do a clutch properly. My 99 was never right and the clutch frequently stuck halfway up. That was a common problem with the C5 all the way to the end of the C5 production and now they have the same problem or worse on the C6. At least with the crank pulley problem, they tried something new by not keying the crank and it led to a few problems. No big deal. Live and learn. With the clutch, they've gone NINE years and still can't get one right. Now THAT bugs me! Seems like after a decade of screwing up, they'd figure out how to make a clutch work properly!

Mike
jack up the rear of the car,put the trans in gear,have someone try and turn the rear wheels as you slowly push in the cluth. just as the wheels can be turned see how far down the clutch pedal is and make some kind of a stop so the pedal can go no farther.
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Old Mar 20, 2005 | 07:54 PM
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If limiting the clutch pedal travel is all that needs to be done, why didn't Chevy figure this out and add a "limiter"?

Does this problem only occur at very high rpms, or at lower rpms too? What is the lowest rpm that anyone has ever experienced it at?

I wonder why all the car magazines that have tested the C6 have not said anything about this. Seems most of them have run decent quarter mile e.t.s... that wouldn't have been possible with a sticking clutch. What am I missing?
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Old Mar 20, 2005 | 08:10 PM
  #12  
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Originally Posted by Vet
If limiting the clutch pedal travel is all that needs to be done, why didn't Chevy figure this out and add a "limiter"?

Does this problem only occur at very high rpms, or at lower rpms too? What is the lowest rpm that anyone has ever experienced it at?

I wonder why all the car magazines that have tested the C6 have not said anything about this. Seems most of them have run decent quarter mile e.t.s... that wouldn't have been possible with a sticking clutch. What am I missing?
try it you'l like it,because if the clutch pedal did not go clear to the floor people would be back to their dealers asking why
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