1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Clutch pedal stays down when depressed.

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Old 10-04-09 | 03:26 PM
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Bob Holton's Avatar
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MI Clutch pedal stays down when depressed.

Myclutch is stuck in go foreward , I cant get it to unlock, tried to pry it out of contact but it is bloody well stuck, I am out of altitude airspeed and ideas.

Last edited by Bob Holton; 10-04-09 at 03:27 PM. Reason: stupid machine cant spell.
Old 10-04-09 | 05:51 PM
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I had that happen a few weeks ago, we took a crow bar to it and discovered it was the slave cylinder had frozen up. Cheaper and easier than a clutch, for sure.

Last edited by Rx-7Doctor; 10-05-09 at 12:06 AM.
Old 10-04-09 | 06:28 PM
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This is the clutch slave and master are new, the clutch pedal goes down and stays, tired of shifting by engine sound,but it works if you are quick enough. Bob
Old 10-04-09 | 06:32 PM
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sounds like you need to bleed the clutch hydraulic system and check for possible leaks or an internal collapsing of the clutch hose.
Old 10-05-09 | 10:57 AM
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I've had a couple of cars do this to me (pedal stays on floor), including my 7 before I replaced the clutch. It would only happen after sitting for the winter.

I never did really "fix" it, but I always got them working again just by moving the pedal back and forth by hand for a few minutes. It just needed a little "excercise".

It could be due to a sticky throwout bearing I think, but that's a total guess. Exercise your pedal (and your arm) and you might get lucky.

Good luck Bob.

P.S. One of these years you've got to bring your car over to GR for a race, meet, or beer drinking weekend. Perfect_circle lives in your town too, but I don't know if you've ever met him. He may be a good source for used parts if you need them....



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Old 10-05-09 | 11:10 AM
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Originally Posted by mazdaverx713b
sounds like you need to bleed the clutch hydraulic system and check for possible leaks or an internal collapsing of the clutch hose.
Do this first.

Mine was doing this about 3 months ago and I had to change out the clutch master cylinder. Luckily, the whole clutch hydraulics system isn't expensive. You could always get a friend to move the clutch back and forth and look and see if the slave is extending. That will tell you right off the bat if it is the clutch system or the hydraulic.
Old 10-05-09 | 11:36 AM
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Pull the slave cylinder, and make sure it operates when you push the clutch pedal. (don't lift the pedal back up by hand here, push the piston back in on the slave, else you will blow the piston out of the cylinder). If everything checks out there, then you're stuck with pulling the tranny to check the clutch. Hopefully it will be something simple in the hydraulic system. Good luck and let us know what you find.

Last edited by BeenJaminJames; 10-05-09 at 11:52 AM. Reason: I'm too stupid to read the thread before I post.
Old 10-05-09 | 12:27 PM
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^ Use care pressing the pedal with the slave cylinder unbolted; it doesn't take much pedal pressure to blow the slave piston and a lot of (paint-eating) fluid all over the place, if the slave doesn't have anything to push against.
Old 10-06-09 | 07:26 AM
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I have it going, cleaned the slave, replaced the master , bled the heck out of it, one guy out and me inside. Finally it gave up and now works. Thanks for all the help. Bob
Old 10-06-09 | 08:17 AM
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glad to hear that you got it working!
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