Drivetrain Questions and info regarding transmissions, clutches, etc.

Clutch stuck part way in during launch from stop?

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Old Oct 18, 2005 | 03:53 PM
  #16  
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Yes, Mik. That's exactly it. But I felt the clutch was slipping, and it sure smelled like it.

I went by the dealer today and explained the issue. They were not aware of any issues. When I get back in town next week, they will take the car in for service and check on this. THEN, they will note my records that I advised them of the issue. I'm gonna be pissed if this causes my clutch to prematurely wear. A replacement is ~ $1000+.
 
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Old Oct 18, 2005 | 04:03 PM
  #17  
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Your clutch is slipping and the pressure plate not engaging is causing the hydralic pressure to make the pedal "stick" halfway. This is a common occurrence on cars with hydralic clutches. The tell-tale sign is the smell after this occurrence. If their is no smell then you are losing hydralic pressure which is a bigger problem but less likely. This happened to me many times on this car when it was NA and I tried to launch on Drag Radials. Since the RPS clutch and flywheel it has not happened. Hope I helped.
PS- I don't have a Sedan but this problem is universal to the 6mt VQ35.
 
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Old Oct 21, 2005 | 02:23 PM
  #18  
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Originally Posted by djniknala
This happened to me many times on this car when it was NA and I tried to launch on Drag Radials. Since the RPS clutch and flywheel it has not happened. Hope I helped.
So did the Turbos or clutch/flywheel upgrade fix the problem? Or do I need both If its a matter of clutch upgrade, it may be worth it.
 
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Old Oct 28, 2005 | 02:46 PM
  #19  
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I sort of had this happen to me yesterday. I started in first just fine, took it up to about 6K RPM then did a quick shift to second, then bam clutch stayed about halfway depressed and car looses power, I'm like WTF, what do I? I immeaditaly let off the gas pedal then stepped on it again, and power was restored and clutch came back up. What's the deal with that?
 
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Old Oct 28, 2005 | 03:30 PM
  #20  
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Was your VDC on, if your car tires had a slight hint of wheel spin, the VDC most likely activated the brakes slowing you down. I've had this happen, but my clutch was out.

I actually launched yesterday and instead of my clutch sticking, I smoked the tires and fish tailed giving me a horrible launch.
 
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Old Oct 28, 2005 | 04:49 PM
  #21  
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Yep it was on. I did hard launch just a little while ago with the VDC on and basically the same thing happened, I heard the tires chirp then almost all power was gone. I guess if I want to do any spirited driving I should turn that off.
 
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Old Oct 28, 2005 | 05:02 PM
  #22  
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This used to happen to me on my '99 Trans Am, but never on my 6MT (yet). With the Trans Am it was a little different scenario: it only happened when I had been revving up with the clutch all the way in. If I took the car out of gear and let the clutch out, I could rev all day and the pedal wouldn't 'stick'. I think it has to do with the clutch getting to hot, so it slips. I live in Texas, and it's not uncommon for cars to behave strangely in the summer heat, even if you don't rev past 3500 or so RPM.

BUT, my 6MT hasn't done it, and I've ridden it pretty hard this past summer. If all else fails, demand that your local dealership service department to fix it. This issue could cause severe accidents.
 
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Old Oct 28, 2005 | 07:36 PM
  #23  
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This is in no way realted to the VDC system - but it's happened with VDC on and off.

VDC has no method by which to control the clutch pedal.

This is an issue with the hydraulics of the clutch system.
 
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Old Oct 28, 2005 | 10:05 PM
  #24  
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Originally Posted by MrBig
Yep it was on. I did hard launch just a little while ago with the VDC on and basically the same thing happened, I heard the tires chirp then almost all power was gone. I guess if I want to do any spirited driving I should turn that off.
Your issue is with the VDC and not the clutch. The VDC will cut engine power if enough wheel slippage is sensed. You'll also see your slip light come on in the dash when it happens.
Yes you should turn it off but make sure road and traffic conditions warrant the little loss of safety VDC could provide.
 
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Old Oct 28, 2005 | 10:07 PM
  #25  
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Originally Posted by trebien
Seems like I read about this somewhere, already.

My car has about 10K miles. I was stopped on a side street, and had to go across the first lanes of traffic to make a left turn. Traffic was coming, so I launched a little more aggressivley than usual - but nothing special. About 3500 rpms, feathering the clutch for traction. As I started to move, I let the clutch pedal out all the way, but the pedal stayed about half-way pushed in until I backed off the gas and the clutch had time to lock up all the way - about a second or two. WTF? It may not seem like a long time, but when you're pulling out with traffic coming, and your clutch won't lock up... a second or 2 seems like eternity. There was some slippage as the pedal stayed only half-way engaged, as I could smell it. This was not a very hard launch, but not the usual 1500 rpm lazy launch in daily driving.

Is our clutch hydraulically controlled? I would assume that it is. It kind of felt like there was not enough spring pressure to return the pedal to normal position, therefore letting the clutch grip all the way... or as if the hydraulic pressure kept the pedal compressed, even though my foot wasn't on the pedal.

Strange.
Very strange indeed. I've had a few launches from that rpm and no issue at all.

Let us know the dealer diagnosis outcome.
 
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Old Oct 31, 2005 | 03:28 PM
  #26  
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I've had this happen too, twice actually, both downshifting and merging on the highway, in the neighborhood of 4k. The clutch sticks about halfway in, doesn't come out until you put it back fully in.
 
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Old Oct 31, 2005 | 07:00 PM
  #27  
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I've had this exact same thing happen to me. It occured when taking off from a dead stop on a slight incline. Luckily, it was in my neighborhood and nobody was behind me.
And speaking of the clutch in these cars, I've had mine for almost 2 years now and still can not take off from a dead stop as smooth as I would like. It's almost as if I've never driven a car with a stick, yet I've driven sticks exclusively for over 15 years now. I can drive my wife's PT Cruiser with no problem. It's very aggravating and my biggest complaint with the car.
 
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Old Dec 2, 2005 | 09:50 PM
  #28  
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Sorry to open up old wounds but this just happened to me tonight. Same deal, on an incline, waiting at a stop sign, no aggressive driving involved, just noticed my clutch was partway stuck down when I came to start moving forward. I propose it was that the clutch was overheated from me balancing it to hold the car steady on the incline before the launch.

Just thought it was interesting is all. I didn't panic much 'cos I remembered this thread

Aren't forums great? Normally I'd have freaked out but I was like "Ah, yes.. this deal... I've been expecting you..."
 
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Old Dec 2, 2005 | 11:02 PM
  #29  
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welcome to the club
 
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Old Dec 3, 2005 | 12:19 AM
  #30  
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This is scary guys, i never noticed this problem , how do u notice the problem , do u feel that the clutch is stuck half way or u need to see it, i have revved up the engine from 1st gear a lot and never noticed any issue but one thing i will say that the pick up from 1st to 2nd sucks, what i mean is that there is not too much power if i pull in 1st gear upto 6000 rpm and after i shift to 2nd there is lot of pick up.

Also regarding the clutch this is the worst i have ever driven in a manual transmission , it is not all smooth and seem to engage properly in one particular sweet spot, recently i drove a Honda S2000 and believe me guys i never tasted a more sweet clutch that that, its so smooth and easy to engage and ofcourse the power of the car is awesome.

This is the only thing i am not happy with my G, otherwise a grt car to drive
 
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