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

Juice14 · 08-09-2012, 11:30 AM

Ordered the ZSP Heavy duty cylinder. lets see how it works.

DIGItonium · 08-09-2012, 03:34 PM

Quote:

Originally Posted by Juice14

Ordered the ZSP Heavy duty cylinder. lets see how it works.

It's great as long as you have the master cylinder adjusted and bled properly. You don't want more than 1" of play before feeling the resistance. Talk to Joe@ZSpeed as he provided valuable advice for the bleed procedure. He recommends cracking open the hard line to the master cylinder to release trapped air before bleeding the CSC.

My engagement point and pedal pressure has been consistent for the past few months regardless of temperature. Before it was all over the place.

fuct · 08-24-2012, 08:42 AM

Quote:

Originally Posted by DIGItonium

It's great as long as you have the master cylinder adjusted and bled properly. You don't want more than 1" of play before feeling the resistance. Talk to Joe@ZSpeed as he provided valuable advice for the bleed procedure. He recommends cracking open the hard line to the master cylinder to release trapped air before bleeding the CSC.

My engagement point and pedal pressure has been consistent for the past few months regardless of temperature. Before it was all over the place.

we need more info about this. i though we could just upgrade the CSC and no more worries. hmmmm

Joe@ZSpeed · 08-25-2012, 06:31 AM

Quote:

Originally Posted by fuct

we need more info about this. i though we could just upgrade the CSC and no more worries. hmmmm

More info about what? You can upgrade the CSC and have no more worries.

fuct · 08-27-2012, 11:07 AM

Quote:

Originally Posted by Joe@ZSpeed

More info about what? You can upgrade the CSC and have no more worries.

i thought i read the master cylinder wasnt up to the task once you installed the upgraded CSC. i read it wrong, all you need to do is bleed it properly.

Footloose301 · 08-11-2012, 08:41 AM

Are you guys taking in your Z with aftermarket parts on the car? After driving on the interstate for 30min my clutch is really soft and engages about 1" off the floor and I need to take it in. I have 37,500 miles on the car.

DIGItonium · 08-11-2012, 10:14 AM

I'm all turbo'd and still take it in. They love my car lol.

L8N8 · 08-15-2012, 12:43 AM

So add another one to the list...
2011 Nismo

I just encountered this issue yesterday. Clutch traveled halfway before engaging. Later on the highway, the problem got worse and the clutch had to be pressed to the floor to change gears. Occasionally, it would also get stuck and I had to pry it back with my foot. The problem seems to be intermittent for now but I took it straight to the dealer. They drove it and said they couldn't find anything wrong. They kept the car for a day and gave me a Versa for a loaner (ugh).
Dealer called today and mentioned that the car is fine and that it is most likely a heat soak issue. Thanks for the posts and comments in this thread cause I'm headed there tomorrow with proof in hand and a demand to inspect the car more thoroughly.

FreshFish · 08-15-2012, 01:05 PM

Mine is in the shop ATM still being inspected. I have 123 miles left on my warranty and awaiting if everything is gonna get covered. This happened while I was going to canibeatxhellaflush this weekend and couldnt show.

PITA as its my only car. If I went to the show I wouldve been real close to being over the 36000mi warranty. Was at the toll road and forgot i was in gear and let go of the clutch. Gave it gas to save it from stalling and was able to keep going but noticed a squishy pedal and eventually the next morning could not put it in gear. Well see what they say. No fluid in the res.

luigi90210 · 08-07-2013, 11:58 PM

Quote:

Originally Posted by L8N8

So add another one to the list...
2011 Nismo

I just encountered this issue yesterday. Clutch traveled halfway before engaging. Later on the highway, the problem got worse and the clutch had to be pressed to the floor to change gears. Occasionally, it would also get stuck and I had to pry it back with my foot. The problem seems to be intermittent for now but I took it straight to the dealer. They drove it and said they couldn't find anything wrong. They kept the car for a day and gave me a Versa for a loaner (ugh).
Dealer called today and mentioned that the car is fine and that it is most likely a heat soak issue. Thanks for the posts and comments in this thread cause I'm headed there tomorrow with proof in hand and a demand to inspect the car more thoroughly.

this is exactly what happened to me but the dealer was able to recreate the problem via test drive and they covered everything under drivetrain warranty

i also have a 2011 nismo

FreshFish · 08-23-2012, 09:36 PM

Finally got my car back. Seems at times the symptoms are still present. Im hoping theyre just air bubbles working their way out of the lines. Time will tell. The dealer is aware.

jennyt71 · 09-03-2012, 05:24 PM

VIN: 503996
Purchase Date: 08/28/2010
Occurrence Date: 09/03/2012
Occurrence Mileage: 26,xxx
Clutch Type: OEM

I havent done anything under the hood - just have ARK exhaust. started by being REALLY slow to come up after shifting for a few minutes (shifting to 6th). Getting off the freeway, had to pull it up with my foot to get it in 1st and 2nd to park at a gas station.. was towed to the dealer. We will see what they say tomorrow. (before today, no issues)

Jsolo · 09-04-2012, 02:36 PM

It would be interesting to note what sort of maintenance was done on vehicles with failed CSC's. Specifically, how often the clutch fluid was flushed.

DIGItonium · 09-04-2012, 03:08 PM

I don't think most of us hit the mileage to require fluid flush before the CSC failed. Some owners already had a failed CSC and/or master after a few thousand miles of ownership.

IIRC, it's a failed O-ring inside the CSC that seals the piston, so it starts leaking fluid from there.

anthonyy · 09-04-2012, 04:00 PM

Quote:

Originally Posted by DIGItonium

I don't think most of us hit the mileage to require fluid flush before the CSC failed. Some owners already had a failed CSC and/or master after a few thousand miles of ownership.

IIRC, it's a failed O-ring inside the CSC that seals the piston, so it starts leaking fluid from there.

yup. My case exactly and same with many others here.

08-11-2012, 08:41 AM	#6 (permalink)
Footloose301 A True Z Fanatic Join Date: Apr 2010 Location: Naples, FL Posts: 2,659 Drives: 40th Rep Power: 23	Are you guys taking in your Z with aftermarket parts on the car? After driving on the interstate for 30min my clutch is really soft and engages about 1" off the floor and I need to take it in. I have 37,500 miles on the car. __________________ 2010 40th Anniversary 370Z

08-11-2012, 10:14 AM	#7 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 44	I'm all turbo'd and still take it in. They love my car lol. __________________

08-15-2012, 01:05 PM	#9 (permalink)
FreshFish Base Member Join Date: Nov 2010 Location: Irvine, CA Posts: 201 Drives: on marshmallows Rep Power: 16	Mine is in the shop ATM still being inspected. I have 123 miles left on my warranty and awaiting if everything is gonna get covered. This happened while I was going to canibeatxhellaflush this weekend and couldnt show. PITA as its my only car. If I went to the show I wouldve been real close to being over the 36000mi warranty. Was at the toll road and forgot i was in gear and let go of the clutch. Gave it gas to save it from stalling and was able to keep going but noticed a squishy pedal and eventually the next morning could not put it in gear. Well see what they say. No fluid in the res. __________________ // nismo // Berk // PW JDM // *WORK* Meister S1 3pc // *TOYO PROXES* // POWERTRIX //

08-23-2012, 09:36 PM	#11 (permalink)
FreshFish Base Member Join Date: Nov 2010 Location: Irvine, CA Posts: 201 Drives: on marshmallows Rep Power: 16	Finally got my car back. Seems at times the symptoms are still present. Im hoping theyre just air bubbles working their way out of the lines. Time will tell. The dealer is aware. __________________ // nismo // Berk // PW JDM // *WORK* Meister S1 3pc // *TOYO PROXES* // POWERTRIX //

09-03-2012, 05:24 PM	#12 (permalink)
jennyt71 Track Member Join Date: Aug 2010 Location: Houston, TX Posts: 637 Drives: '10 PW Nismo #393 Rep Power: 17	VIN: 503996 Purchase Date: 08/28/2010 Occurrence Date: 09/03/2012 Occurrence Mileage: 26,xxx Clutch Type: OEM I havent done anything under the hood - just have ARK exhaust. started by being REALLY slow to come up after shifting for a few minutes (shifting to 6th). Getting off the freeway, had to pull it up with my foot to get it in 1st and 2nd to park at a gas station.. was towed to the dealer. We will see what they say tomorrow. (before today, no issues) __________________

08-09-2012, 11:30 AM	#1 (permalink)
Juice14 Base Member Join Date: Nov 2011 Location: International Posts: 132 Drives: Red 370Z Rep Power: 15	Ordered the ZSP Heavy duty cylinder. lets see how it works.

08-15-2012, 12:43 AM	#8 (permalink)
L8N8 Base Member Join Date: Feb 2010 Location: VA Posts: 36 Drives: fast, takes chances Rep Power: 17	So add another one to the list... 2011 Nismo I just encountered this issue yesterday. Clutch traveled halfway before engaging. Later on the highway, the problem got worse and the clutch had to be pressed to the floor to change gears. Occasionally, it would also get stuck and I had to pry it back with my foot. The problem seems to be intermittent for now but I took it straight to the dealer. They drove it and said they couldn't find anything wrong. They kept the car for a day and gave me a Versa for a loaner (ugh). Dealer called today and mentioned that the car is fine and that it is most likely a heat soak issue. Thanks for the posts and comments in this thread cause I'm headed there tomorrow with proof in hand and a demand to inspect the car more thoroughly.

09-04-2012, 02:36 PM	#13 (permalink)
Jsolo Track Member Join Date: Dec 2011 Location: chicago Posts: 783 Drives: '12 G37 6MT Rep Power: 16	It would be interesting to note what sort of maintenance was done on vehicles with failed CSC's. Specifically, how often the clutch fluid was flushed.

09-04-2012, 03:08 PM	#14 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 44	I don't think most of us hit the mileage to require fluid flush before the CSC failed. Some owners already had a failed CSC and/or master after a few thousand miles of ownership. IIRC, it's a failed O-ring inside the CSC that seals the piston, so it starts leaking fluid from there. __________________

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