G35 Coupe V35 2003 - 07 Discussion about the 1st Generation V35 G35 Coupe

clutch pedal

Old Jun 3, 2010 | 12:17 PM
  #1  
cmesidewayz's Avatar
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From: Orlando FL
clutch pedal

ive done some searching but couldnt find a problem with this...

heres what happened. red light, turns green. clutch in, put it in first. brought the rpms up to about 4 thousand. let the clutch out slowly. i know i know it burns the clutch when you do this but the music was up and i was talking to my friend, first time it happened. after i left the clutch out and took my foot off i accelerated in first and it seemed to slip a little, then pushed the clutch down to shift into second.. still slipped.. it was still halfway on the floor ! so i put it in second came off the gas then checked my gauges.. neutral then stopped. i smelt the clutch burning . i was so mad at myslef. everything was fine when i put it in first again and took off ( letting the clutch out at about 1200 rpm) like i normally do.

so my question in what happened to the clutch and why didnt it come off the floor ? could there be any damage besides burning the clutch a little ????
 
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Old Jun 4, 2010 | 10:38 AM
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I have had this problem too when on a hard drive at elevation. Check your clutch fluid reservoir and see if your fluid is amber in color or has an amber hue to it. If it does then your fluid has probably been burnt and boiled over causing the drop in fluid pressure not allowing the pedal to return. Now a trick to replace the fluid with out having to go through the hassle of draining the system is pretty simple and cheap.

Go but a gas mixing syringe. You can get them at Wal-Mart for not very much. Use this to suck out the fluid from the reservoir being careful not to get it on your paint at all. Suck all the fluid out then use a cloth which does not leave any fibers behind to wipe the inside of the reservoir and cap. Re-fill with new DOT4 or better fluid to the specified mark. Put the cap on and then get inside the car and pump the clutch pedal 20-25 times with a nice full stroke at the same speed and force you would use when driving.

Go back to the reservoir and such out the fluid and re-fill (no need to wipe the inside this time). Go back and pump the pedal again. Repeat this process until the fluid you are sucking out is the same color as the fluid you just put in. This may take 5-6 times or more depending.

When you are done you should notice better pedal feel and a more positive engagement.

If you have any questions, just ask.
 
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Old Jun 4, 2010 | 12:16 PM
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^^ sounds like good advice.
 
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Old Jun 5, 2010 | 02:35 AM
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Originally Posted by DustinB_2005G35
I have had this problem too when on a hard drive at elevation. Check your clutch fluid reservoir and see if your fluid is amber in color or has an amber hue to it. If it does then your fluid has probably been burnt and boiled over causing the drop in fluid pressure not allowing the pedal to return. Now a trick to replace the fluid with out having to go through the hassle of draining the system is pretty simple and cheap.

Go but a gas mixing syringe. You can get them at Wal-Mart for not very much. Use this to suck out the fluid from the reservoir being careful not to get it on your paint at all. Suck all the fluid out then use a cloth which does not leave any fibers behind to wipe the inside of the reservoir and cap. Re-fill with new DOT4 or better fluid to the specified mark. Put the cap on and then get inside the car and pump the clutch pedal 20-25 times with a nice full stroke at the same speed and force you would use when driving.

Go back to the reservoir and such out the fluid and re-fill (no need to wipe the inside this time). Go back and pump the pedal again. Repeat this process until the fluid you are sucking out is the same color as the fluid you just put in. This may take 5-6 times or more depending.

When you are done you should notice better pedal feel and a more positive engagement.

If you have any questions, just ask.

uh huh.
 
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Old Jun 5, 2010 | 03:00 PM
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From: The Petersburg,FL
Originally Posted by DustinB_2005G35
I have had this problem too when on a hard drive at elevation. Check your clutch fluid reservoir and see if your fluid is amber in color or has an amber hue to it. If it does then your fluid has probably been burnt and boiled over causing the drop in fluid pressure not allowing the pedal to return. Now a trick to replace the fluid with out having to go through the hassle of draining the system is pretty simple and cheap.

Go but a gas mixing syringe. You can get them at Wal-Mart for not very much. Use this to suck out the fluid from the reservoir being careful not to get it on your paint at all. Suck all the fluid out then use a cloth which does not leave any fibers behind to wipe the inside of the reservoir and cap. Re-fill with new DOT4 or better fluid to the specified mark. Put the cap on and then get inside the car and pump the clutch pedal 20-25 times with a nice full stroke at the same speed and force you would use when driving.

Go back to the reservoir and such out the fluid and re-fill (no need to wipe the inside this time). Go back and pump the pedal again. Repeat this process until the fluid you are sucking out is the same color as the fluid you just put in. This may take 5-6 times or more depending.

When you are done you should notice better pedal feel and a more positive engagement.

If you have any questions, just ask.
This and a nismo clutch line solved the problem for me.
 
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Old Jun 5, 2010 | 06:47 PM
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From: sj
Originally Posted by junCakes
uh huh.
lol wtf is the uh huh for?
 
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Old Jun 7, 2010 | 09:45 AM
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I do it every time before I go to the track or for an extended spirited drive. Works wonders for me. This also works for the power steering as well you just need to suck the fluid out of its reservoir once and then re-fill. A lot easier then flushing the system. Only need to do this once about every 30k or so.
 
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Old Jun 7, 2010 | 12:57 PM
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Originally Posted by tEh d0ct0r
This and a nismo clutch line solved the problem for me.
How hard was it to install the clutch line? Was it a pain to bleed?
 
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Old Jun 7, 2010 | 01:00 PM
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Originally Posted by DustinB_2005G35
I have had this problem too when on a hard drive at elevation. Check your clutch fluid reservoir and see if your fluid is amber in color or has an amber hue to it. If it does then your fluid has probably been burnt and boiled over causing the drop in fluid pressure not allowing the pedal to return. Now a trick to replace the fluid with out having to go through the hassle of draining the system is pretty simple and cheap.

Go but a gas mixing syringe. You can get them at Wal-Mart for not very much. Use this to suck out the fluid from the reservoir being careful not to get it on your paint at all. Suck all the fluid out then use a cloth which does not leave any fibers behind to wipe the inside of the reservoir and cap. Re-fill with new DOT4 or better fluid to the specified mark. Put the cap on and then get inside the car and pump the clutch pedal 20-25 times with a nice full stroke at the same speed and force you would use when driving.

Go back to the reservoir and such out the fluid and re-fill (no need to wipe the inside this time). Go back and pump the pedal again. Repeat this process until the fluid you are sucking out is the same color as the fluid you just put in. This may take 5-6 times or more depending.

When you are done you should notice better pedal feel and a more positive engagement.

If you have any questions, just ask.

Does elevation have a huge factor in clutch use or slipage? I live in Denver and I have had this issue before but only once about a year ago. I should have changed my fluid. Sounds like a project for tonight.
 
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Old Jun 7, 2010 | 02:11 PM
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Yes, elevation does effect the boiling point. The higher you go, the lower the boiling point gets. Once your fluid boils over it increases the volatiles in the fluid and that will increase the chances of it boiling over again.

Best way to see if you need to change the fluid is to look at the reservoir and if the fluid looks amber/yellowish in color, then it is time.
 
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Old Sep 16, 2010 | 02:16 PM
  #11  
cmesidewayz's Avatar
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i think ive got the problem fixed now, thanks !
 
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