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Old Feb 15, 2013 | 11:30 PM
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Anyone know if they gonna use C6 Hydraulics system on C7?? cause that was a nightmare with sticky clutch pedal issue all GM 6 speed manual cars suffer from this issue, i hope they just do it right this time
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Old Feb 15, 2013 | 11:48 PM
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One GM 6 speed manual did not have a problem, mine. No nightmares here.
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Old Feb 16, 2013 | 12:08 AM
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I'd like to see a self bleeding system. I've heard the bleeder is difficult to get to in the C6 (I don't have one, so I'm just going off what I've heard.
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Old Feb 16, 2013 | 12:24 AM
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Originally Posted by jamesw95
One GM 6 speed manual did not have a problem, mine. No nightmares here.
you are soo lucky i was facing this problem at high rpm and shifting quickly.

people tried diffrent things, the only thing that was work is to change to Tick perf master cylinder.
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Old Feb 16, 2013 | 12:25 AM
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GM should certainly use a better seal in the salve cylinder to eliminate all the clutch dust contamination...
can't imagine this would be expensive to upgrade. But, nine C6 model yrs later and it's still not fixed...
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Old Feb 16, 2013 | 12:55 AM
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Originally Posted by jamesw95
One GM 6 speed manual did not have a problem, mine. No nightmares here.
Awesome - you're driving a C4 with a ZF too! No issues for me either!
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Old Feb 16, 2013 | 03:26 AM
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that issue only with lsx older LT1/4/5 they was fine.
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Old Feb 16, 2013 | 09:08 AM
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Originally Posted by jamesw95
One GM 6 speed manual did not have a problem, mine. No nightmares here.
Add two more to that list, I've never had any problems with either the T56 in my C5 or the one in my Miata, during 11 years of autox/DEs.

Have a good one,
Mike
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Old Feb 16, 2013 | 10:09 AM
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Originally Posted by red guy
you are soo lucky i was facing this problem at high rpm and shifting quickly.

people tried diffrent things, the only thing that was work is to change to Tick perf master cylinder.
Went through three master cylinders on mine. Never heard of the Tick, can you tell me more?
Problems occur at quick shifts near red line. I think those not having problems either don't rev that high or shift pretty slow.
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Old Feb 16, 2013 | 11:18 AM
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Originally Posted by red guy
Anyone know if they gonna use C6 Hydraulics system on C7?? cause that was a nightmare with sticky clutch pedal issue all GM 6 speed manual cars suffer from this issue, i hope they just do it right this time
Not all!! 26 or 27K miles on my C6 Z06 and no clutch or pedal issues. Where do people come up with these statistics???

That said, GM stated that there are only 2 parts carried over from the C6 and the clutch hydraulics were not one of them. So to answer your question, NO, they are not using the C6 hydraulic system on the C7!
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Old Feb 16, 2013 | 11:25 PM
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Originally Posted by Brett Hunter
Went through three master cylinders on mine. Never heard of the Tick, can you tell me more?
Problems occur at quick shifts near red line. I think those not having problems either don't rev that high or shift pretty slow.
http://www.tickperformance.com/
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Old Feb 16, 2013 | 11:29 PM
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Originally Posted by slief
Not all!! 26 or 27K miles on my C6 Z06 and no clutch or pedal issues. Where do people come up with these statistics???

That said, GM stated that there are only 2 parts carried over from the C6 and the clutch hydraulics were not one of them. So to answer your question, NO, they are not using the C6 hydraulic system on the C7!
i hope.
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Old Feb 17, 2013 | 01:50 AM
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Originally Posted by slief
That said, GM stated that there are only 2 parts carried over from the C6 and the clutch hydraulics were not one of them. So to answer your question, NO, they are not using the C6 hydraulic system on the C7!
It wasn't 2 parts on the whole car, just the body. They were making sure people understood it was more than a face/*** lift. There's 5-6 parts in the engine that are carryover, a6 tranny unchanged besides TC etc...
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Old Feb 17, 2013 | 09:33 AM
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Originally Posted by slief
Not all!! 26 or 27K miles on my C6 Z06 and no clutch or pedal issues. Where do people come up with these statistics???

That said, GM stated that there are only 2 parts carried over from the C6 and the clutch hydraulics were not one of them. So to answer your question, NO, they are not using the C6 hydraulic system on the C7!
I think that will be proven wrong. They have said only 2 parts were carried over. I have a feeling that many parts are carried over with only minor changes to accomodate the new platform. GM marketing likes to brag about saying the car is 99.9 % new to give the idea that somehow it is radically different and improved.
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Old Feb 17, 2013 | 10:10 AM
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Originally Posted by slief
Not all!! 26 or 27K miles on my C6 Z06 and no clutch or pedal issues. Where do people come up with these statistics???

That said, GM stated that there are only 2 parts carried over from the C6 and the clutch hydraulics were not one of them. So to answer your question, NO, they are not using the C6 hydraulic system on the C7!
While the actual number of cars exhibiting the issue may be being exaggerated by Red, the "slow pedal return" is a well documented issue reaching as far back as the C5 on many manual transmission equipped Corvettes and F-bodies. I'm hoping my Tick MC kit fixes the issue on my '00 C5.

IMO it is a very reasonable question to see if they have improved things on the C7. Pretty annoying when you grab 2nd aggressively and then the clutch pedal sticks to the floor so you're stuck until you pull the pedal up with your foot and wait for the hydraulics to function again.

Originally Posted by HurricaneRN
It wasn't 2 parts on the whole car, just the body. They were making sure people understood it was more than a face/*** lift. There's 5-6 parts in the engine that are carryover, a6 tranny unchanged besides TC etc...
According to Autoblog:
Originally Posted by Autoblog
A word about the transmissions – the optional Hydramatic six-speed carries the same model number as before – 6L80 – but incorporates a host of new internals, including revised gears, a different torque converter and active fuel management software.
With new internals and revised gears I would say the A6 is changing more than you're suggesting.

The 2 carry over parts bit is interesting, though. They said cabin air filter and the rear targa latches. They also said the LT1 only had a few carry over parts, starter bolts and other fasteners iirc. So since the LT1 will be in the C7, it seems like the drivetrain was not being considered in the initial statement.

As someone else said, they can technically make only minor changes to a part and assign a new PN, and it is a "new" part.

I don't really have a problem with that claim though, because the changes they've made are likely to effect interchangeability, so it really is new. You couldn't substitute the C6 version. Considering the main loads and constraints are all similar (front engine, rear transmission, rwd), it's not really bad to have the parts be an improved version of a proven design, IMO.
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Old Feb 17, 2013 | 10:20 AM
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This is a deal killer if not resolved. No problem with my c6 but the c5 z was terrible no matter how many new clutches or slaves installed. C7 must resolve this issue once and for all....other than 24 month clutch fluid change
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