I currently have the JWT clutch and fly wheel and a turbonetics setup on my 03. I was leaving my job noticing that the clutch felt different as if it was getting stuck but it started coming back up. Jumped on the highway and clutch was fine.Till traffic came up and i down shifted to 5th let go of the clutch and the clutch stuck to the floor and pulled over to the breakdown lane. I got a tow to my house and looked under the hood and i had no fluid. I lift the car up and noticed my slave cylinder was leaking and noticed that the small belt from the pulleys had broke also. I ordered a new slave cylinder and replaced it and the clutch is still stuck to the ground and now I dont know what to do. I really need all of your inputs.
Thanks alot.

 

This might sound like a stupid suggestion but did you bleed the clutch line? Also did you make sure the clutch line it self has no hole in it or that the banjo connection on the bell housing is ok?

 

Sounds like you need to bleed the slave unit / clutch line. Had that same problem with other manual cars.

 

thanks man ill try that again and see what happens

 

It's your cluch slave cylinder. It happens when you get a heavy duty pressure plate with an old slave cylinder. I'd recommend getting ATLEAST nissan oem. Do not buy them from Kragen/napa even if they INSIST it's OEM.

Just order a NISSAN OEM slave cylinder and you'll be good!
Nopi.com sells Tokico/Nabco which is basically OEM. I used one in my 240sx that had a heavy duty pressure plate (kept blowing kragen/napa slaves) and it survived 4 drift events until I sold the car.

 

thank god i ordered it from nissan but i still have the problem even after i installed it and bled the lines i am just goin to have to have someone look at it cant seem to figure out wat it is there is a metal peice hanging down to push the slave cylinder in. that piece is extremely loose it doesnt seem right thanks alot guys

 

+1 slave cylinder.

When I had the Nismo clutch installed by Nissan on my car, my slave cylinder went out less than 30 miles later (only 20k miles on the car).

 

When you refill and pump the pedal, is the slave cylinder still leaking? I had the same problem with my '03 G and thought it was the slave as well. But turns out that the release fork/lever pivot bolt (pin) inside the transmission broke off, which didn't put any pressure on the salve cylinder, so it leaked, and no pressure on the clutch pedal. The slave cylinder, when engaged, pushes on the release fork/lever. With mine, this lever piece that pokes out of the tranny, was flimpsy and loose. Check if this is the case, if so, you'll most likely need to drop the tranny to replace this release pin, which is basically a standard hex bolt with a metal ball joint at the top of the head of the bolt. Good luck


edit: I just reread your last post and you did mention that the lever is loose. I'm 99% sure that it is the problem I describe. There is a release pin that acts as a pivot point for the lever and has broken off. So the lever is hanging freely. We had to open up the tranny to replace the $16 bolt. My shop actually has done one other 350Z before so he knew exactly what the symptom was.

 

Maybe your clutch fork pivot is broken? Reason why I say this is because you say your pivot fork (the metal thing sticking out) is loose, there's a little pivot joint that the fork teeter totters on when being pushed/released. Sometimes that little joint breaks under heavy duty pressure plates. The only way to replace it is to take off the transmission . The part itself is really cheap though. I know Nismo makes them for the 240sx, not sure for 350z

 

Thanks for explaining it better than my post. This is exactly what's wrong. The bolt is $16 (for my infiniti and probably less for nissan). Labor to drop the tranny brings a tear to my eye.

 

wooow that is exactly whats going on in my tranny same symptoms. would it be difficult to do it myself and a couple of my freinds help? or just have it sent to a shop? thanks alot guys.

 

I'd recommend you guys get it done unless you have experience with transmission/clutch swaps. It can be done if you're meticulous and patient and have a factory service manual, but it's a lot of grunt work. The tranny is SUPER heavy. I'd just pay to get it done, but if you have strong friends and access to a lift, by all means do it yourself!

 

Thanks alot man Im goin to look into it more before I start messing with it its just that theres not alot of shops around here that work on Zs. Its mostly Honda shops..

 

I know I'm digging up the grave, but thanks for the info.

I have an 03 G 6MT. My clutch dropped to the floor today as well. It would pop back up if I pulled it up, but would continue to drop once I depressed the clutch. Clutch is not engaging. I checked the clutch fluid level and it was at Min. I filled it up and started pumping the clutch, the levels went back to min and I noticed a pool of fluid on the bottom side of the car (probably near the tranny). I have yet to check the underside since I was unable to get a tow truck until late in the day.

Hey n1sm0r and ratm68 or anyone else. If my problem lies with the release pivot/fork bolt (i hope this isn't the case, not ready for the labor of a tranny dismantle). What would you recommend replacing at the same time when the tranny's out? My miles are kind of high(~70k) and I don't know the condition of the clutch since I bought the car not too long ago, so I guess it might be best to change out the clutch. I was thinking of a JWT lightweight flywheel and unsure about clutch brand(comments?). But is there any thing else? clutch slave cylinder, clutch master cylinder, operating cylinder(is this same as slave?), stainless steel clutch line upgrade? Just don't want to go back into that tranny or anything related a second time until a long time.

Sorry for the long post. Hope you guys are still around. Thanks in advance!

 

Thats the same thing that happened to me and it was the pivot ball joint. Check the slave cylinder just in case. I had the JWT flywheel and ACT 6 puck clutch before that happened to me and ended up with JWT flywheel and clutchmasters fx400 do to the fact i am FI...

 

Hey Kant,

thanks for the response. Man this is really frustrating. I just got under the car and the clutch opearting cylinder(slave?) is leaking on the boot end near the clutch hose. There's that lever that sticks out that you guys were talking about. It was loose to the point that I could move it with my fingers. The lever was also loose to the point that it wasn't making contact with the pin from the clutch cylinder. My question, is it definitely the pivot ball inside? The lever is loose, but is it suppose to be even loose a little?

How much did it cost you to have the tranny dropped?

Thanks again for the help.

 

its the clutch master cylinder. happened to me before. dont go to nissan though, they charged me $430 to drop the tranny.

 

I had this shop I knew do it for me the slave cylinder cost about 40 dollars from nissan I had installed it my self really easy to do. I have never installed anything like that before but anyways that was not the problem with my tranny because the clutch still never came back.. it seems to me like it is your slave...