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Failing Master/Slave Cylinder?

 
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Old 03-19-2011, 12:56 PM
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Failing Master/Slave Cylinder?

Okay, so here's the back story:

Whenever my car is cold, my shifter acts funny. Like it has no slack. For instance, when I first start driving it from a cold start, it will not allow me to engage first gear unless I am at a complete and dead stop. Once it warms up, I can engage it at a slight roll (< 5mph). I just chalked this up to a lude condition considering no other manual has been that picky to me before.

Recently, it has been getting worse and now it's an issue. Last night (not particularly cold, maybe 35 out), I rolled out of my girlfriend driveway and coasted to the end of her street (like normal). In the coast, I started my car. Once I was at the bottom of the hill, I pushed my clutch in. It gave almost no resistance and went straight to the floor, which is odd. I tried to engage first, but it wouldn't go. I kept trying and nothing. I then disengaged the clutch and tried again. It worked, but with resistance. Then, every gear gave me trouble until my car warmed up. It was still acting funny even when at operating temperature. As far as I know, it's still doing it. It used to engage a few inches from the complete disengaged position. Now, it's fully engaged just about an inch off the floor.

I'm thinking it's somewhere in my hydraulic system. Any thoughts?

EDIT: It seems to work better if I pump the clutch first.
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Old 03-20-2011, 04:45 AM
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Re: Failing Master/Slave Cylinder?

I need some direction to go guys! As of now, I have no car and my quarter starts soon. It took me 30 minutes to make a 6 minute trip. I have to fight every gear. I really need help.
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Old 03-20-2011, 05:07 AM
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Re: Failing Master/Slave Cylinder?

If pumping the clutch helps then there's probably air in the system. Checking the fluid level and bleeding it should make it better for a while but you need to find where the air got in. If air is getting in then fluid is getting out, find the leak and you'll know what needs to be fixed.
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Old 03-20-2011, 06:19 AM
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Re: Failing Master/Slave Cylinder?

maby you are low on clutch fluid? I had the same problem with my car. It the little cup with a grey top on the driver side of the car that say "break fluid only". it may be low so that may be why you have to pump it.
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Old 03-20-2011, 08:38 AM
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Re: Failing Master/Slave Cylinder?

Quote:
Originally Posted by naj3000 View Post
maby you are low on clutch fluid? I had the same problem with my car. It the little cup with a grey top on the driver side of the car that say "break fluid only". it may be low so that may be why you have to pump it.
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Old 03-20-2011, 09:43 AM
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Re: Failing Master/Slave Cylinder?

If the fluid is very low you can get air in the system. If the fluid is so low that you're getting air in the system then you have a leak, brake fluid does not evaporate.
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Old 03-20-2011, 11:57 AM
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Re: Failing Master/Slave Cylinder?

If it"s master/slave problem, you should be able tell from the slave cylinder pushing the release fork (or whatever it"s called).

The only reservation I have is that failing cylinders would make it shifting to all gears difficult.
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Old 03-20-2011, 06:35 PM
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Re: Failing Master/Slave Cylinder?

So it officially stopped working. No little trick or method is working. I pushed my clutch to the floor then released and the pedal didn't even come back up. I'm figuring I have zero fluid, or is this a common symptom of a failing master/slave cylinder? Thanks for all of the help guys! I plan on working on this tomorrow, so I hope I can pinpoint the problem before then. I also hope it's not the hydraulic line because that's special order at my local auto parts stores.
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Old 03-20-2011, 07:13 PM
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Re: Failing Master/Slave Cylinder?

First thing get under your dash and look at the mounting bracket. It houses the pedal with springs attached and two switches. It'll probably be a little rusty looking. The springs would push your pedal back out to your foot if this assembly was still mounted correctly. You have two bronze switches that relay the pedal position to the ecu. Above the uppermost switch there is a bolt that holds that assembly up. If that bolt came loose then youd get the symptoms youre describing. (Until it falls out like mine did) Just get under there and check it, takes a little flexibility but an easy thing to check. A little loctite on the bolt wouldnt hurt either.
Hope thats youre issue since it's an easy, and inexpensive, fix.
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Last edited by EchoSixKappa; 03-20-2011 at 07:15 PM.
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