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

eastwest2300

damn, thats so sh1tty... I'm sorry bro.

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Infiniti QX70 & Toyota Supra 3.0 Premium

Vbp6US

I think we should clarify by stating that there are two distinct issues being reported across the 49 pages so far; a completely limp clutch pedal - generally attributed to a CSC failure. This also means you have a leak which will be observable in a low clutch fluid reservoir from the driver's side engine bay compartment. Your clutch pedal is sitting on the floor board and you have to lift it with your foot.

The second scenario is just a Master Cylinder failure where the clutch pedal only returns 20%-60%. This is also problematic because the car is practically undrivable, at least in a safe manner. The clutch engagement point is about the first inch of release the clutch pedal. You better hope you don't run into any large inclines on surface streets. These issues have really put me off to the 370Z and Nissan in general. If they address it, I will reconsider, and would strongly consider continuing my long standing loyalty.

KoolKarmaJoe

From what I learned from others who have either had problem with CMC or CSC, is that when one of the two fails you are better to replace both at same time. Also going to a HD CSC is highly recommended. You may also wish to go to a "insulated" version of the short CLUTCH line so as to ward of heat to fluid. This is the second time my OEM CSC has failed. Never again will I buy a OEM CSC . The Nissan part is crap!

Sent from my XT1254 using Tapatalk

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"Joe"
AAM True 3" Duals / Whiteline Bars & Rear Links / Tanabe Sustec Pro / Mishimoto Oil Cooler / Michelin Pilot SS
ACT HD Pressure Plate / ACT Performance Disc / ACT Streetlite Flywheel / ZSpeed HD CSC on GTR Fluid.

BamBamZ

Name - Year - Mileage

1: Digitonium - 2009 - 16,158
2: dubhov - 2010 - 6,605
3: Joka4411 - 2010 - 10,000
4: Zeto - 2009 - ?????
5: Calivin - ???? - 11,500
6: Lazer_Z - ???? - 3,412
7: Zilent_Jay - 2009 - ????
8: Crystalline - 2009 - 8,500
9: Sarmyth - 2010 - 10,000
10: Fastfatdude - ???? - 140
11: Quicksliver- 2008 G37s - 25,000-30,000
12: Boost'dVQ - 2011 - 7,600
13: Big_J - 2009 - 21,000
14: Trilitheum - 2011 - ????
15: anthonyy - 2011 - 12,000
16: Youseenothing - 2011 - 9,300
17: 370Z_Purist - 2009 - 12,000
18: Bking - ???? - ????
19: Knio - 2010 - 17,000
20: dragonbreath - 2009 - 28,000
21: juice14 - 2011 - 6,200
22: Random_Strata - 2010 - 36,000
23: L8N8 - 2011 - ????
24: JennyT71 - 2010 - 26,000
25: TheGreatOne - 2010 - 22,000
26: windex - ???? - ????
27: Neptune - 2009 - ????
28: afbunn - 2009 - ????
29: sparhax - 2009 - 40,000
30: sungear - 2011 - 35,500
31: lhinojos - 2012 - ????
32: Steveasis - 2012 - 8,000
33: Slikshoes - 2011 - 16,200
34: Jstevenson - 2009 - 25,000
35: Simota1 - ???? - ????
36: Talimac - 2012 - 14,000
37: Sinceday1 - 2009 - 37,000 (Kilometers)
38: Slipper4678 - 2010 - 34,000
39: luigi90210 - 2011 - ????
40: SAmilitaryman - 2009 - 60,000
41: Shutterjock - 2010 - ????
42: Zensation - ???? - ????
43: Farmosh203 - 2009 - ????
44: Ephan - ???? - 24,000
45: Jstevenson - 2009 - 33,000 *again*
46: Denny_Mcclain - ???? - 18,000 & 43,000
47: DarylP - 2011 - 33,000
48: Kail - 2009 - 48,000
49: hunterinc - 2009 - 45,000
50: MikeUCFL - 2012 - 14,500
51: mdxj - 2009 - 33,000
52: jordan777er - 2009 - 50,900
53: n8gtol - ??? - 20,000 *3rd time*
54: Kylebucket - 2009 - 27,000
55: joelito - 2012 - 12,100 *4th time*
56: 1087 - 2012 - 12,243
57: ohmikegod - 2012 - ????
58: Z_Man - 2009 - 8,000
59: Kuyo - 2014 - 7,000
60: 90_ST - 2009 - 27,500 (Kilometers) *2nd time*
61: Osirus - 2011 - 40,000 *4th time*
62: tr0n - 2012 - 21,000
63: radensb - 2009 - ????
64: JeMo44 - 2013 - ????
65: mab864 - 2013 - 9,900 *2nd time*
66: duderevs - 2009 - 30,000 (Kilometers)
67: tigwelder - 2010 - 15,000
68: Need_NewName - 2009 - ????
69: R3drckt09 - 2009 - ????
70: Johnwiki - 2011 - 60,000
71: UXI - 2015 - 2,012
72: j312311 - 2015 - 1,700
73: pbs370z - 2010 - 9,000
74: Misnomer - 2010 - 28,000
75: Agent_K - 2013 - ????
76: KoolKarmajoe - 2009 - ????
77: BamBamZ - 2009 - 31,075
78: VBP6US - 2009 - 30,000 & 60,000
79: ZBrah - 2011 - 25,465
80: Rumblefish - 2010 - 29,000
81: jwick - 2010 G37 - 1,200
82: Fosingwo- 2011 - 17,000

for EVERYONE that has experienced or even are concerned for yours to go out give Nissan North America a ring and tell the rep you're issues or concerns. 1-800-NISSAN-1 and file a complaint with the NHTSA here https://www-odi.nhtsa.dot.gov/Vehicl...nt/index.xhtml

BamBamZ

I only tried to count those with the CSC failure so I skipped several that had confirmed it was the CMC and not the CSC

nizmo19

Ok looking for some opinions. Recently my clutch has been making a grinding noise just before engaging fully in 1st and 2nd gear. I took it to a shop and they said sounds like throw-out bearing. I believe we have the CSC instead of a traditional throw out bearing. Has anyone seen this symptom of the CSC failing or could it be something else? Thanks in advance.

jwick

I read that as you went back with a CSC. OEM or HD from ZSpeed?

FYI the elimination kit just replaces the CSC. The reminder of the clutch system remains the same.

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'10 G37T 6MT Graphite/Graphite - BP - G37T Build

Misnomer

I have no idea how you get "I went back with a CSC" (whatever that means) from "I had the entire clutch assembly replaced."

Am I maybe using the wrong terminology? I don't know anything about parts, but "clutch assembly" is what the shop called it. Whatever parts make up a clutch in addition to the CSC and CMC, they all got replaced.

Once again, I didn't do an elimination kit.

Zbrah

If you don't know what was included in your new clutch assembly, it's possible the shop just replaced your old CSC/CMC with another oem CSC/CMC. If it is so, you're at risk for another failure later on. May be worth to check your invoice for the parts listed

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DIGItonium

Z's and G's prior to 2007 (before the HR engine) used an external slave cylinder with a clutch fork pushing on it. This is pretty easy for maintenance because there's no need to drop the entire transmission to service the slave cylinder. With an internal slave (CSC), it pretty much lightened up the clutch effort. Lots of cars use CSC nowadays, but all of them eventually face the same issue with leaking and whatnot. The Valeo-sourced CSC body is all plastic, which is one of the factors contributing to these problems. For mine, the o-ring on the piston slipped off. I don't even track my car, drag raced, or even dumped the clutch. There was never a situation where the pedal sunk itself to the floor other than the stiffness in the winter.

Anyway, the elimination kit ditches the internal slave for an external and fork setup.

Simply create a spreadsheet and share it on Google Docs. If you like, I can edit post #1 to include a link to the document.

[EDIT] Please PM me if you want to volunteer with edit permission.

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DIGItonium

Post #1 edited with link to Google Sheets document on my Google Drive storage. Vbp6US is currently volunteering to help maintain this document.

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MagmaRed370z

Vbp6US ,
Add me to that list. Just concern category (if you have one).

schellingr
2014 370z with 10,500 miles.


Thanks.

fosingwo

Zbrah

If you haven't done so, please take a few minutes to write a complaint on NHTSA via the link I pmed to you. It's our only way of getting nissan to step up and fix this.

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Zbrah

Posted to the 370z fb group. Any one here in the group please like and share!

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