Aguita

Hello, I have a z06 with 20k miles is a 06 model never tracked or abused..

*FIX*

After getting all the parts the pressure plate was broken! Disc looked good along with slave but new parts are in.

Attached some pics of plate and the pin that i found









2 days ago i did a 2nd gear pull almost to redline, i went wot about 4k, after reaching 6.5k i heard a spring noise type sound that happened under the car, i thought it was something the tires picked and thrown to the underbody, i pushed the clutch in to go into 3rd and pedal went to the floor! i pulled up by hand and tried to engage clutch again and same.

While i was coasting i noticed that if i gave gas the car was clutched and slipping, the more i gave gas the more it slipped.

The pedal when pressed it stays on the floor and you can feel a lil bit of resistance on the bottom like the clutch is grabbing.

I changed the MC with the new version and car still doing the same, so im thinking is something related on the clutch itself..

Slave is NOT leaking so i think is ok, Fluid was changed and kept clean always.

Before dropping the tranny is there anything else i should look for!?

I did noticed that when on stop and go traffic the clutch pedal sometimes "felt" heavier the pull than when i started driving.

Car is stock, im leaning towards pressure plate maybe broke one of the fingers.

i cannot put the car in gear from idle even after replacing the MC before that all gears worked fine, i can go thru all gears while car is off.

I also started the car on the lift on gear and still doing the slipping of the clutch.

Any ideas?!

thanks

AORoads

Hydraulic fluid is clean, trans fluid is, too. Little spring almost under dash is still there, too, right? Slave cylinder?

https://www.corvetteforum.com/forums...-pressure.html

Aguita

Thanks already did all those procedure, spring under dash? Going to check that, should i see it right away if i look up on the pedal?

schpenxel

Slave or clutch is all that are left.

AORoads

Yes, it's a little curley-cue spring. Usually when it breaks, you see 2 pieces of it on the floor mat. But I'd think that would not be your problem.

extrapilot

Here you go...

cclive

The fact that the slave is not leaking does not mean that it is OK...the fluid can be bypassing the piston in the slave, giving the symptoms you describe.

CMY SIX

C5 spring is better, now is the time to get it to the dealer NOW! they have a TSB on it and your time is running out!!!

extrapilot

I think he said he changed it out for the new version, (MC) if that's the TSB your referring to.

schpenxel

If fluid were bypassing the piston in the slave it'd be leaking. There's nowhere else for it to go..

cclive

You're right...I don't know what I was thinking...LOL

Aguita

I already bought the MC from a dealer, im overseas and the only dealer here didnt import any z06 so parts are difficult i need to order everything online, but im getting my reimburse from GM

Im leaning more on the pressure plate, Already ordered the parts they should be on my hands by next week.

Im dropping the trans myself with a help of a friend, any DIY guide around?!

schpenxel

I've done it many times. Any questions, ask.

Basically drop exhaust, tunnel plate. Rear cradle nuts (no impact on these), upper A arm bolts, one end of shocks. Goes easier if you remove shifter. Remove driver rear caliper, disconnect passenger on driver side wheel well. Remove parking brake cables.

Remove bolts holding torque tube to bell housing. Disconnect slave cylinder from master (remove clip from connection under brake booster reservoir and pull apart)

Drop it down and pull it out.

CMY SIX

YES! and the C5 spring I meant is the one on the clutch pedal under the dash, it will give you better "feel" at the pedal then the C6 spring

Aguita

Bump

extrapilot

Looks like you got your problems solved, but I have to ask, hopefully your flywheel doesn't look like the pressure plate, as it appears to have suffered from heat checks on the surface.

Aguita

it got heated when it broke i was driving and clutch was slipping, FW looked good