Rvca3112

The other day I went to drive the car, left over night, and the clutch pedal had 1/4 pressure. Super low engagement point in comparison to the high engagement point. I've searched but the only answers I see are bad accumulator or slave cylinder. It doesn't apply to me because I have the gt2 mod. It has a Sachs clutch and 964 rs lwfw.

No fluid inside or outside the car. Could it be a bad master cylinder? (Based on the 1 post I saw on 6speed by the owner of speedtech exhaust)

Any ideas on what to check? It's been parked since the issue. I restarted the car shortly after parking it in the garage and had full pressure again.

Jferrante

I have a master if that's it

Kevinmacd

You still have a slave cylinder. Try a bleed first!

"02996ttx50

+1.

Rvca3112

Really? I was under the impression that it eliminates the accumulator and slave. Learn something new everyday. Is it difficult to do it? I need to search for a diy.

"02996ttx50

you still have a clutch master cylinder and slave and required fluid. all the gt2 conversion does, is eliminate the sharing of fluid from the ps res and eliminates the accumulator.

Kevinmacd

Since the pedal restored to normal one would believe there may be a small amount of air. Also check the hydraulic lines that they are not ruptured and expanding/ swelling under pressure!

Rvca3112

just checked the car today ((sucks so much not having the garage at your house)) the clutch lost its pressure right off the bat. But now it's not popping back to the top, it's staying low like just barely above the engagement point. You can put your foot under it and push it a little and it pops back up. Any idea how this could possibly happen? The clutch pedal felt perfectly fine on the last drive I had with it.

Macster

Air in the system.

What kevinmacd suggested was spot on. Do a clutch fluid flush/bleed.

I'd only add that before you start if the fluid level is low there is likely a leak and while the clutch behavior might be better after the flush/bleed it won't remain better for long.

RngTrtl

im wither every one else. Bleed the clutch. its pretty easy if you have the right tools (a power bleeder).

fpb111

How long ago was the GT2 conversion done? It could also be that the pentosin (original) fluid was not fully cleaned out of the system. If that is the case it will fail again as the GT2 stuff is not compatible with pentosin.

Rvca3112

Modification was done roughly 5 years ago

Rvca3112

Little update on this situation

I went to check on the car. I was able to start the car but was locked out of all gears. I pumped the clutch for a bit and then was able to get the car in gear and get it out of the garage so it could be towed to my local p car shop. They said the resovoir had no fluid in it, so they did a full flush and were able to bring the clutch back to life. They did this to make sure that mechanically there was nothing wrong with it. My slave and master cylinder are leaking so I will be getting new ones if those tomorrow. So annoying.

RngTrtl

thanks for the update. I think we all (i know i did) had assumed that you would have done is checked the fluid.

Rvca3112

Oh I did check the reservoir. I was debating on adding fluid to it just to get the car spun around so it could be towed. I was able to get enough pressure to get reverse and first gear accessible. I was just reporting what the tech found with the car.