Sticky: (Official) 370Z Clutch Pressure (CSC) Failures

esfourteen · 06-17-2011, 01:15 PM

Quote:

Originally Posted by EVOnomore

Any issues on 2011"s??My Clutch feels weird.Noisy when the pedal is not engaged?

noisy transmission when clutch is pedal is not depressed is normal

Glokwork · 06-20-2011, 05:39 PM

After seeing this thread I want to check the fluid level on my z. I just went under the hood for a minute because its raining but I didnt see it. Where is it located?

esfourteen · 06-20-2011, 09:48 PM

Quote:

Originally Posted by Glokwork

After seeing this thread I want to check the fluid level on my z. I just went under the hood for a minute because its raining but I didnt see it. Where is it located?

driver side towards the rear of the engine bay under the plastic cover

6MT · 06-20-2011, 09:54 PM

Quote:

Originally Posted by DIGItonium

Let's sticky a thread that lists owners who experience loss of clutch pressure with the pedal sticking to the floor. Please include the last 6 digits of the VIN, since Nissan support requested this number when calling for support. Hopefully we can gather some failure stats.

VIN: 406164
Purchase Date: 04/17/2009
Occurrence Date: 09/14/2010
Occurrence Mileage: 16,158
Clutch Type: OEM

Summary:
Getting ready to leave work, warmed up the car, pulled around the corner of the parking lot, and the pedal sunk to the floor when attempting to engage 3rd. The morning commute was normal, and there has been no real complications other than random shudder when going into 1st. The more I press it, the further it sunk without returning. A twitch of the foot would kill the engine. Clutch is stock. I never dumped it, burned out, etc. Only a few spirited driving once in awhile.

Conclusion:
[09/15] CONFIRMED CSC FAILURE, and a new part will be overnighted. The failed part must be returned to Nissan, but I asked the service advisor if I could examine the CSC and take some photos to benefit the community in regards to what's causing the failure.

[09/16] Car is still at the shop. The tech spent the entire day removing the transmission. Hopefully it'll be ready tomorrow afternoon. On a side note, I requested them to check out the brake switch and re-align it to resolve part of my throttle delay issues.

[09/17] Got the car back. The tech said something about fluid leaking out of the CSC. From looking at it first hand, it looks like it is leaking from the inside indicating o-ring failure. He said the last car he worked on had the same symptoms, but it was the master cylinder that failed. He was surprised about the condition of my clutch (clean) because he wonder if I ever drive the car hard. The car seems to drive a bit better, softer engagement, less play, and so far no signs of judder.

Part Number: 306A1-JK40D

[EDIT] Found a term for the random "shudder." It's called clutch judder:
WikiAnswers - What makes a clutch judder

Yeah.... so? Sounds like just bad luck. Could have happened to anyone.

fuct · 07-25-2011, 09:21 AM

hi my name is nick and i also have a stick clutch pedal....

haha, but yea 50% of the pedals play has lost pressure. i checked the fluid level and it was at the MIN level. topped it off and it felt about the same. i tried to pull out the old fluid and replace with some new dot 3/4 fluid. im not sure if i have all the air outa the system. it feels the same with the pedal only feeling normal during 50% of its stroke.

does anyone have the proceddure for proper clutch fluid bleeding on our cars? thx in advance

oh im at about 23k miles and baby the car.

quicksilver08 · 07-31-2011, 12:31 PM

Lost it in my Infiniti around 25-30k miles. Worked fine and then I went to stop and it sunk to the floor. At 41k now and if the car sits overnight the pedal sinks almost all the way to the floor and it takes about 25 miles of stop and go to bring it back up.

DIGItonium · 07-31-2011, 12:48 PM

Quote:

Originally Posted by quicksilver08

Lost it in my Infiniti around 25-30k miles. Worked fine and then I went to stop and it sunk to the floor. At 41k now and if the car sits overnight the pedal sinks almost all the way to the floor and it takes about 25 miles of stop and go to bring it back up.

Did you get the master cylinder checked?

ZForce · 08-21-2012, 09:51 AM

Quote:

Originally Posted by quicksilver08

.........At 41k now and if the car sits overnight the pedal sinks almost all the way to the floor and it takes about 25 miles of stop and go to bring it back up.

Same symptom happened to me three days ago, although mine only takes the car to warm up in the garage before coming back to normal clutch pedal feel. 40k miles no leakage. Will be taking it in. Oh yeh ....I purchase the 100k extended warranty both of them. Doubt its the clutch worn.

quicksilver08 · 07-31-2011, 01:16 PM

They replaced the master cylinder, slave cylinder, and clutch pedal assembly. Said the clutch looked brand new and asked if I ever drove it.

DIGItonium · 07-31-2011, 01:26 PM

Quote:

Originally Posted by quicksilver08

They replaced the master cylinder, slave cylinder, and clutch pedal assembly. Said the clutch looked brand new and asked if I ever drove it.

Haha same here. At least we didn't suffer the burnt clutch issue like some owners of '07+ 350Zs had. I hate the "free play" feeling of the clutch engagement, so I can't wait to see how well an aftermarket CSC will perform.

quicksilver08 · 07-31-2011, 02:58 PM

Ditto. Mines to the point that it drops till its about an inch off the floor and then it disengages the clutch.

Boost'dVQ · 03-25-2012, 06:16 AM

2011 My clutch just went out around 3 in the morning driving home, had to get it towed since every time i came to a red-light it would stall because the clutch was still engaged half way. 76xx miles

Boost'dVQ · 03-27-2012, 10:09 PM

Update: Took it to the dealership, they took the tranny out and found that the clutch assembly was saturated in brake fluid, they said they're changing the slave cylinder and the clutch assembly out all under warranty. Dealership said that the clutch had a 12mon/12,000mile warranty on it.

Big J · 04-17-2012, 08:39 AM

Well I think my slave cylinder died yesterday as well. 2009 with 21,xxx miles. The clutch pedal is just dead. I'll update when my Nissan dealer calls me today.

Footloose301 · 05-06-2012, 06:26 PM

I had problems yesterday while doing some light Auto-X. I never launched the car at all and never shifted from 2nd gear. It stuck 8-10 times and I'd have to pop it back up with my toes. I'm at 33,XXX miles.

07-31-2011, 12:31 PM	#6 (permalink)
quicksilver08 Base Member Join Date: Jul 2011 Location: Buda, Tx Posts: 66 Drives: 08 Infiniti G37s 6mt Rep Power: 15	Lost it in my Infiniti around 25-30k miles. Worked fine and then I went to stop and it sunk to the floor. At 41k now and if the car sits overnight the pedal sinks almost all the way to the floor and it takes about 25 miles of stop and go to bring it back up. __________________ 2008 Infiniti G37s 6mt coupe Berk HFC, Magnaflow Catback, JWT Popchargers, H&R, Eibach, Stillen Sways, B&M short throw, 4.08 frontier gears, NST pulleys

07-31-2011, 01:16 PM	#9 (permalink)
quicksilver08 Base Member Join Date: Jul 2011 Location: Buda, Tx Posts: 66 Drives: 08 Infiniti G37s 6mt Rep Power: 15	They replaced the master cylinder, slave cylinder, and clutch pedal assembly. Said the clutch looked brand new and asked if I ever drove it. __________________ 2008 Infiniti G37s 6mt coupe Berk HFC, Magnaflow Catback, JWT Popchargers, H&R, Eibach, Stillen Sways, B&M short throw, 4.08 frontier gears, NST pulleys

07-31-2011, 02:58 PM	#11 (permalink)
quicksilver08 Base Member Join Date: Jul 2011 Location: Buda, Tx Posts: 66 Drives: 08 Infiniti G37s 6mt Rep Power: 15	Ditto. Mines to the point that it drops till its about an inch off the floor and then it disengages the clutch. __________________ 2008 Infiniti G37s 6mt coupe Berk HFC, Magnaflow Catback, JWT Popchargers, H&R, Eibach, Stillen Sways, B&M short throw, 4.08 frontier gears, NST pulleys

05-06-2012, 06:26 PM	#15 (permalink)
Footloose301 A True Z Fanatic Join Date: Apr 2010 Location: Naples, FL Posts: 2,659 Drives: 40th Rep Power: 23	I had problems yesterday while doing some light Auto-X. I never launched the car at all and never shifted from 2nd gear. It stuck 8-10 times and I'd have to pop it back up with my toes. I'm at 33,XXX miles. __________________ 2010 40th Anniversary 370Z

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06-20-2011, 05:39 PM	#2 (permalink)
Glokwork A True Z Fanatic Join Date: Jun 2011 Location: Roanoke, VA Posts: 2,657 Drives: 11 370Z MB 6MT Rep Power: 23	After seeing this thread I want to check the fluid level on my z. I just went under the hood for a minute because its raining but I didnt see it. Where is it located?

07-25-2011, 09:21 AM	#5 (permalink)
fuct A True Z Fanatic Join Date: May 2009 Location: Sugar Land Posts: 3,692 Drives: 97' Ranger :) Rep Power: 26	hi my name is nick and i also have a stick clutch pedal.... haha, but yea 50% of the pedals play has lost pressure. i checked the fluid level and it was at the MIN level. topped it off and it felt about the same. i tried to pull out the old fluid and replace with some new dot 3/4 fluid. im not sure if i have all the air outa the system. it feels the same with the pedal only feeling normal during 50% of its stroke. does anyone have the proceddure for proper clutch fluid bleeding on our cars? thx in advance oh im at about 23k miles and baby the car.

03-25-2012, 06:16 AM	#12 (permalink)
Boost'dVQ Base Member Join Date: Oct 2011 Location: Austin Posts: 57 Drives: 11 Nissan 370z MB M6 Rep Power: 15	2011 My clutch just went out around 3 in the morning driving home, had to get it towed since every time i came to a red-light it would stall because the clutch was still engaged half way. 76xx miles

03-27-2012, 10:09 PM	#13 (permalink)
Boost'dVQ Base Member Join Date: Oct 2011 Location: Austin Posts: 57 Drives: 11 Nissan 370z MB M6 Rep Power: 15	Update: Took it to the dealership, they took the tranny out and found that the clutch assembly was saturated in brake fluid, they said they're changing the slave cylinder and the clutch assembly out all under warranty. Dealership said that the clutch had a 12mon/12,000mile warranty on it.

04-17-2012, 08:39 AM	#14 (permalink)
Big J Track Member Join Date: Jun 2010 Location: Memphis Posts: 905 Drives: 370z Rep Power: 17	Well I think my slave cylinder died yesterday as well. 2009 with 21,xxx miles. The clutch pedal is just dead. I'll update when my Nissan dealer calls me today.