C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

It never ends, need diagnosis help!

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Old Aug 24, 2008 | 08:44 PM
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Default It never ends, need diagnosis help!

After coming back today from a nice vacation I went to drive my car home. I almost made it home when the clutch went to the floor. They was a sort of clank sound as it happened. Now I can't push the clutch in without it grinding like crazy and stalling. The clutch pedal seems very loose. You can hear a slight clanking sound at idle. Any ideas what I'm in for?
Its a 90 6 speed. The engine was replaced last year with a new clutch.
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Old Aug 24, 2008 | 09:35 PM
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Clutch Hydralics are bad/leaking. When is the last time you replaced the slave, master and hose? Read up on it at zfdoc.com

Randy
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Old Aug 25, 2008 | 08:06 AM
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Originally Posted by RandyJ75
Clutch Hydralics are bad/leaking. When is the last time you replaced the slave, master and hose? Read up on it at zfdoc.com

Randy

I've never replaced any of the hydraulics. I checked the reservoir and it's full.
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Old Aug 25, 2008 | 11:04 AM
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Does the clutch disengage when you step on the pedal? My guess is that it is something inside the bellhousing, if the hydraulics were not functioning, you should get no or partial disengagement.
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Old Aug 25, 2008 | 11:08 AM
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I hope you got a warranty.
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Old Aug 25, 2008 | 01:22 PM
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Originally Posted by skybolt31
Does the clutch disengage when you step on the pedal? My guess is that it is something inside the bellhousing, if the hydraulics were not functioning, you should get no or partial disengagement.
It doesn't disengage at all. I can't push the pedal in without it grinding.
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Old Aug 25, 2008 | 04:29 PM
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The TOB collar could have broken off,

it happened to Central Coaster once, he posted pics
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Old Aug 26, 2008 | 01:25 AM
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Originally Posted by jimmers
I've never replaced any of the hydraulics. I checked the reservoir and it's full.
Full reservoir only means it's not leaking. It could still be the clutch master, or did the arm from the master to the pedal come off? Remove the drivers side hush panel, and reach up and see if it's still attached. If the pedal does not go up and down it could be this, or what Larry said about the throw out bearing. This happen to my car, the clip was not put on right (I wonder you did that?) and it came off while driving the car.


Randy
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Old Aug 26, 2008 | 01:30 AM
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the master cylinder pushes on a fork that pushes on the plate. the way i would go about this is to remove the master cylinder and check to make sure it's operating correctly. if it is the transmission needs to come out and you need to figure out what broke. a clutch change isn't really as bad of a job as it sounds like. if you do it on jacks the one thing you need to be is somewhat in shape. the easiest way i have found to install one of the ZF's is to just bench press it up and wrestle it in. if you have a low height transmission jack that would probably also work. me? i just get mad at it and rough it up some. talk bad to it and shove it in
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Old Aug 26, 2008 | 08:12 PM
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Thanks for the replies everyone. Turns out the throw out bearing went.

Last edited by jimmers; Aug 26, 2008 at 08:15 PM.
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