Help!...something is wrong.
Thread Starter
Burning Brakes
Joined: Oct 2005
Posts: 1,020
Likes: 18
From: Anderson SC
Help!...something is wrong.
Ok. We bought an 07 vert for parts at a great price but when it was delivered, we decided it just may be too nice to disassemble. My question is this. At 8k miles, the car starts and runs perfect, but being a manual trans, it will not go into ANY gear with the engine running. With the engine off, it goes into gear perfectly. Also, cluth pedal feels terrible. It's like the clutch disk is engaged all the time. Note also that fluid is down to minimum in slave cylinder and does not drop level when you push in the pedal. Has this happened before anyone? Could this have happened from the car sitting for a period of time? I would really like to get this car going. Thanks for any help!
Race Director
Joined: Mar 2005
Posts: 10,399
Likes: 25
From: Austin Texas
Hopefully it's just a question of low/bad fluid and not a mechanical problem with the pressure plate or disc or a clutch master or slave cylinder problem.
Try filling the clutch master with new Dot 4 fluid, pump the pedal 15-20 times then remove the discolored fluid from the master with a syringe and refill with fresh fluid, pump 15-20 times until you get clear fluid to the proper level on the master cylinder.
If that doesn't fix the problem then you are looking at an expensive, time consuming removal of the complete drivetrain to R & R the pressure plate/disc/slave cylinder. Good Luck.
Try filling the clutch master with new Dot 4 fluid, pump the pedal 15-20 times then remove the discolored fluid from the master with a syringe and refill with fresh fluid, pump 15-20 times until you get clear fluid to the proper level on the master cylinder.
If that doesn't fix the problem then you are looking at an expensive, time consuming removal of the complete drivetrain to R & R the pressure plate/disc/slave cylinder. Good Luck.
Burning Brakes
Joined: Jun 2008
Posts: 1,214
Likes: 3
From: CA
Might wanna check the hydraulic line. Does the pedal just drop to the floor with no pressure?
If so, then you have a problem with the hydraulic system. Not hard to fix at all. Just a little time consuming.
Just a few things to check out:
Line that goes from the slave cylinder to the tranny.
reservor is not leaking.
When you pump the pedal do you see any fluid leaking under the car
If nothing wrong with the clutch system check the shifter liinkage.
Hope this helps. Sorry for the bad grammer....it's too early.
If so, then you have a problem with the hydraulic system. Not hard to fix at all. Just a little time consuming.
Just a few things to check out:
Line that goes from the slave cylinder to the tranny.
reservor is not leaking.
When you pump the pedal do you see any fluid leaking under the car
If nothing wrong with the clutch system check the shifter liinkage.
Hope this helps. Sorry for the bad grammer....it's too early.
Thread Starter
Burning Brakes
Joined: Oct 2005
Posts: 1,020
Likes: 18
From: Anderson SC
Yes. It goes into gear very smooth with engine off. Have a firm pedal. No leaks. Just flushed with DOT4. Clear fluid in reservoir. Still won't engage with engine running. It tries to lunge forward while running. Like I said, it seems that the clutch is stuck. Again, car has light damage to front impact bar so it doesn't seem the accident caused this but not sure. Car has 8k miles, looks brand new. Pulling the drivetrain is no problem, just seems like there would be an easier fix. Any additional info would be greatly appreciated.
Safety Car
Joined: Feb 2007
Posts: 4,684
Likes: 107
From: Opelika Alabama
lets see the car was sold because it was a TOTAL, and you don't think it's hurt that bad? Let's see the frame is bent jaming the diff and the tq tube together and thats leading to the clutch problem?
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Racer
Joined: Sep 2007
Posts: 333
Likes: 27
From: East Coast
2Kvert:
How long since the car has been driven? Is it possible the clutch disc could be stuck to the pressure plate or flywheel? I know drum brakes will do this if in a humid environment. If you put the trans in gear and then try to start, what happens? If the disc is stuck to the flywheel on pressure plate(or both) it will be like starting the car in gear, so be careful, if the engine fires up you could find yourself in motion with no way to stop short of shutting off engine or brake pedal and stalling it, make sure the your path is clear.
How long since the car has been driven? Is it possible the clutch disc could be stuck to the pressure plate or flywheel? I know drum brakes will do this if in a humid environment. If you put the trans in gear and then try to start, what happens? If the disc is stuck to the flywheel on pressure plate(or both) it will be like starting the car in gear, so be careful, if the engine fires up you could find yourself in motion with no way to stop short of shutting off engine or brake pedal and stalling it, make sure the your path is clear.
Thread Starter
Burning Brakes
Joined: Oct 2005
Posts: 1,020
Likes: 18
From: Anderson SC
Thanks for all with USEFUL advice. This isn't my first rodeo with a wrecked vette. I KNOW exactly what damage this car has and it has nothing to do with frame damage having the drivetrain in any kind of bind. All damage is in front of the aluminum engine cradle and it's very little at that. Now then....Thanks for the advice guys. That's exactly what i was thinking and some of you are right. I'm thinking it's stuck to the engine. Car must have sat for a while. I've put new DOT4 fluid in resevoir so it's good. Try to crank car in gear and it tries to lunge forward. WILL NOT go into gear with engine running. Should I try to let the engine run and bring it up to operating temp to see if it frees up? Any other ideas?
Racer
Joined: Sep 2007
Posts: 333
Likes: 27
From: East Coast
2Kvert:
My C6 is an auto so I don't know, but is there any access to the clutch without removal of components( like an inspection port)? If so could a thin piece of sheet metal be inserted between the pressure plate and disc and then between disc and flywheel? If you had the room it could be used as a kind of spatula to free up the components.
My C6 is an auto so I don't know, but is there any access to the clutch without removal of components( like an inspection port)? If so could a thin piece of sheet metal be inserted between the pressure plate and disc and then between disc and flywheel? If you had the room it could be used as a kind of spatula to free up the components.