Drivetrain Transmission, LSD, Clutch, Driveline, Axles...

Clutch not disengaging

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Old Feb 1, 2010 | 08:12 PM
  #1  
ncstateredline's Avatar
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From: Asheville, NC
Clutch not disengaging

Ran into some clutch problems tonight and really need help.

You may have seen my hard getting into gear at high rpms, it seemed temperature related and I was leaning towards transmission oil but that isn't the case.

-gmpp clutch, installed a month ago and now with 1k miles on it

Tonight I was driving back to Raleigh from Asheville (3.5 hour drive, 2,000 ft down in elevation...) and was in fifth gear 90% of the trip. I tried downshifting into 4th and got the shifter into neutral with the clutch pedal depressed, but it wouldn't go into 3rd, 4th, 5th (too fast for the lower two). I coasted in neutral to the side of the road, trying to pump the pedal to see if it would help.

I literally stood on the pedal and tried getting into any gear after I stopped and ended up slamming it into first (but with no grinding noise).

I started again and ran through the gears fine back to fifth. i then depressed the clutch and realized the rpm's didn't come down at all.

I somehow made it back to my apartment off the interstate and had to go through the process of standing on the pedal and forcing it into gear every time I stopped, sometimes I didn't think it would go in.

The clutch seems like it has no resistance, the reservoir is full of fluid. There was an odd plastic like "click" a couple of times I depressed the pedal hard.

Is this probably labor or part? Slave cylinder/ master cylinder? Failed master cylinder rod or bleeding issue? Unfortunately the shop I had install it is back in Asheville.

Sorry if this is a previously discussed issue, I just got back from a funeral and have to catch up on work/ study for a biochem exam. This is not a convenient time for my car to give me problems too
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Old Feb 1, 2010 | 09:29 PM
  #2  
nicksredline's Avatar
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From: ohio
bump for him
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Old Feb 2, 2010 | 10:56 AM
  #3  
ncstateredline's Avatar
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From: Asheville, NC
So I went and checked the plastic clip, firewall, and everything seems solid.

I started up the car and it still wouldn't go into gear so I pumped the clutch about 20 times and it seems to have worked .

I drove around for about 15 minutes with no problems other than what I was experiencing before with the slightly "stiff" gears (I probably still need to change my transmission oil, 35* outside and colder seems to make it worse).

What do you guys think I should do? Bleed it? Replace the master cylinder?

I won't be going on another long trip for a while, I'm thinking it may not come back with city driving because I'll be using the clutch regularly every couple of minutes.
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Old Feb 6, 2010 | 02:46 PM
  #4  
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From: Madison, WV
Get a brake and clutch master cylinder pressure kit and test your master output pressure, if it's good it's probably going to be either air in the system or your slave/TOB. The reason I don't think it has anything to do with your transmission is the fact you mention depressing the clutch and the engine RPM staying the same - meaning the clutch wasn't disengaging - and that is your problem.
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