996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

996 TT Clutch pedal goes to floor?

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Old Apr 6, 2019 | 07:23 PM
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996 TT Clutch pedal goes to floor?

Please help me.

Today I started car, pushed in clutch pedal and went to the floor!! Pulled up with hand, went back to floor. No fluid under car from actuator. Clutch worked great last week. anyone know whats up? Spring connection? if so, where located? Any other suggestion please give me details of where to find what i need to fix and feel free to write to me like a 3 year old

Thanks- Steve
 

Last edited by MasterG; Apr 6, 2019 at 08:43 PM. Reason: better description of issue
Old Apr 7, 2019 | 08:12 AM
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Accumulator and slave are in your future.
 
Old Apr 7, 2019 | 08:46 AM
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Originally Posted by MasterG
Please help me.

Today I started car, pushed in clutch pedal and went to the floor!! Pulled up with hand, went back to floor. No fluid under car from actuator. Clutch worked great last week. anyone know whats up? Spring connection? if so, where located? Any other suggestion please give me details of where to find what i need to fix and feel free to write to me like a 3 year old

Thanks- Steve
Yeah accumulator and slave.
Go to a good independent and they'll put in 997 parts for you for about half the price of a dealer.
Dealer will charge you around 2500
Independent will do 900 to 1300.

In short have a flatbed take your car to a good indy or dealer.

Though if your car starts it might just be accumulator.

If you Google 996 gt2 clutch conversion you have that option which is a permanent fix but requires modding.

Also a hard more precise and deliberate pedal
 
Old Apr 7, 2019 | 09:46 AM
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Reads like a slave cylinder has failed but a leak in the clutch's hydraulic system can produce the same behavior. If air gets into the system air compresses way more than the hydraulic fluid.

I've had an accumulator fail on my Turbo. The clutch pedal still worked ok just there was no clutch assist power stored when the engine was off and when operating the clutch at idle one could feel a bit of pulsing through the pedal. This was from the hydraulic pump.

A sign of a clutch slave cylinder being bad -- well, besides the clutch going to the floor -- is the front reservoir under the panel just ahead of the driver will show signs of fluid leaking.

For the accumulator the tech told I could continue to drive the car if I wanted. He said he would sometimes come across a Turbo with this problem that the owner had been driving this was for a long time. Often when he told the owner about this the owner thought the tech was just trying to pad the bill cause the clutch felt otherwise fine.

There is a test documented in the factory manual on how to check the accumulator is operating properly.

But when I had the car in and showed him the signs of fluid leaking from the slave cylinder reservoir the tech said that should be dealt with promptly and I left the car.

For my car I just had the accumulator and slave cylinder replaced and all was fine after. The GT2 conversion is expensive and IIRC can result in a clutch pedal that requires considerably more effort to operate.

Can't recall now if the accumulator/slave cylinder was done under CPO warranty or I had to pay for it. I do remember to address the high pitched whistle due to a failed power steering bypass valve I had to pay to have the power steering tank replaced. The valve was in the tank and the valve was not available separately.

Be careful if you mess the power steering hoses. They have some kind of quick disconnect feature but it can be damaged if not operated properly and then the hose connections will leak. There is a special tool that one uses to properly work the fitting to get it to release properly. Using the blade of a screwdriver is not a suitable substitute.
 
Old Apr 7, 2019 | 07:58 PM
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Thank you all. I'll get it in shop and keep you posted.
 
Old Apr 9, 2019 | 08:11 AM
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It could also be that the release bearing broke off. (Happened to me once)
 
Old Apr 12, 2019 | 11:34 AM
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Check the master cylinder and see if there is any fluid by the pedal it self. Clutch is hydraulic so either master or slave failed, or a hydraulic line failed (unlikely)
 
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