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Clutch Pedal stuck

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Old 11-03-2010 | 04:14 PM
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Clutch Pedal stuck

My clutch pedal got stuck yesterday. I've had zero problems so far but yesterday when I caught a green light with some late breaking, clutch in, down shift to 2nd, rev-up-match and release clutch pedal on the sharp left turn.... the clutch pedal stayed stuck on the floor and my rpm rose to redline with no power to the wheels causing me to slide out until VDC kicked in with applying brakes to the outer wheels....but with no power the LSD wasn't working so well either.

looked pretty juvenile but only because i'd lost power to the rear temporarily causing it to oversteer.

i smelled the clutch all day yesterday...also slight shudder on slow take-offs...which should go away soon but the lost confidence will have to be regained...

I have 21K miles on 08G37S Anyone else experience this??
Old 11-03-2010 | 04:56 PM
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Sounds like your slave cylinder
Old 11-03-2010 | 06:15 PM
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i think so too...it sure did find the right time to get stuck! ...also at engagement point burning on the clutch plate.
Old 11-03-2010 | 06:17 PM
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there was another thread on this, I guess some of the models are having problems with the slave cylinder.
Old 11-03-2010 | 11:28 PM
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From: Saint charles, Missouri
Originally Posted by shabbo
i think so too...it sure did find the right time to get stuck! ...also at engagement point burning on the clutch plate.
I would take the entire clutch assembly apart to make sure nothing else got damaged. You might have warp spots in which case the whole clutch will have to be replaced.....Would go with a aftermarket one anyways.
Old 11-03-2010 | 11:29 PM
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From: Saint charles, Missouri
Originally Posted by raul0434
there was another thread on this, I guess some of the models are having problems with the slave cylinder.
Do they make aftermarket slave cylinders?
Old 11-03-2010 | 11:59 PM
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Originally Posted by DmfG37sTT
Do they make aftermarket slave cylinders?
Yup - I just put one in..

https://www.myg37.com/forums/engine-...sc-review.html
Old 11-04-2010 | 09:47 AM
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Sounds like the slave got stuck but with the shuddering and smelling the burning clutch all day I would def. check the whole thing out. Since you are pretty much doing all of the steps to change a clutch just to get in there and inspect it I would skip inspecting and just replace it.

Just wondering, you said that your rear kicked out because of the lack of power, but then your next post you said it got stuck right at the engagement point. Which is it? If it got stuck right at the engagement point you still would have put power to the wheels but it would have slipped pretty bad.

Something to think about here. If your rear end slid out on a turn it is because you were going too fast through the turn. Had your clutch not screwed up and worked as it should you would have put more power through the rear wheels causing an even greater amount of oversteer. With a modern transmission there is absolutely no need to rev match, if you work the gas and clutch together properly you should be able to up and down shift with no shock to the driveline. Next time use the time spent bliping the throttle to apply a little more brake to slow you down through the turn.
Old 11-04-2010 | 01:11 PM
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yep..little more braking wouldn't have hurt.

I still feel that on a turn applying some forward force always helps stabilize the car. I can normally always feel the LSD kicking in and breaking out of the slide...just not this time because the clutch never engaged or at least didn't fully engage.

I have a 100K warranty and the dealership is pretty nice with covering all matters so far so I 'll keep everything stock although the aftermarket kits are much nicer.

I did a "clutch pedal stuck" search on google and all the hits are vw, audi, toyota, mazda etc....no direct Nissans (until you search CVT ... lol)
Old 11-04-2010 | 02:48 PM
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Since this happened has your clutch pedal felt a little softer and more spongey? If it does then you will need to get it checked out sooner rather than later because that means you have a leak and are sucking air into the system. I know the last Nissan slave cylinder I had go out it got spongy for a few days then one day I guess the seal broke enough that there was no pressure left in the system and I was stuck.

You could also check your fluid, the burning smell could have been the fluid boiling vs. the clutch burning in which case a simple fluid swap might get you back to square 1. Check to see if the fluid is darker colored or the typical clear like it should be right out of the bottle. If its brownish it needs to be changed.

I would also be worried if I was acctually feeling my LSD at work. Its not supposed to brake and I would venture to say that what you are feeling is your tires grab as they slide meaning you are taking turns too fast. All the LSD does is allow one tire to turn faster/slower during the turn while still allowing them to have equal tq. applied while going strait as opposed to an open diff or a solid axle(spool).
Old 01-01-2011 | 10:38 AM
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shabbo, any updates?

Similar situation with me. Last night leaving an underground parking, big line of cars going up the out ramp, about 1/5 the way up waited until the car ahead was at the top, behind me big Suburban right on my rear bumper, no place to drift place and let the clutch slip until 1st gear grabbed, rev'd to about 4K than let the clutch out, clutch did not release, pedal stayed down, engine rev'd to over 6K, car did not move, like it just kept hunting for drive, pushed in clutch, and rev's came down, did it again, same thing, then pulled up clutch pedal with my foot while car slowly went up ramp at 5K. Drove normal, except for the continuous smell, all the way home.

Hope this is not the start of a bad year.
Old 01-03-2011 | 04:48 PM
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When you lose your slave cylinder your clutch will be engaged permanently, not half engaged/half disengaged. I know because I've lost it on my car and on a truck. Sounds like yours is getting weak though. Try pulling off the clutch pedal release spring and see if that helps. The c5 corvettes were bad about the clutch pedal sticking part way and removing the spring on the back of the pedal cured it.
Old 01-03-2011 | 04:52 PM
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Originally Posted by shabbo
I can normally always feel the LSD kicking in and breaking out of the slide...just not this time because the clutch never engaged or at least didn't fully engage.
Do what?
Old 04-25-2011 | 02:56 PM
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same thing happen to me friday at the dragstrip im going to get ss clutch line and motul rbf600 Z1 370z/G37 Stainless Steel Clutch Line
Old 04-25-2011 | 07:27 PM
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Originally Posted by jdkno
.... With a modern transmission there is absolutely no need to rev match, if you work the gas and clutch together properly you should be able to up and down shift with no shock to the driveline. Next time use the time spent bliping the throttle to apply a little more brake to slow you down through the turn.
Disagree 100%. What exactly do you think makes a "modern" transmission not need to be rev matched? This isn't the 370Z transmission that rev matches for you. That said, it's always a good idea to rev match a downshift simply because the RPM will always be higher than they were when you shift down to a lower gear. It's funny that you said there's no reason to rev match in a modern transmission when nothing has changed in the way they operate since, well, just about forever.


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