Hi Everyone!

First, I have search the internet and this site to death. No help.

I purchased a 2002 Turbo K18 car last week. Within 50 miles, the clutch pedal acted odd. Specifically, the initial press was normal, but within 1-2 seconds, the pedal's pressure significantly increased. If you immediately hit the clutch, the pressure is high. Wait 3-4 seconds and it will again start light and increase.

There is overflow from the front bottle.

The pressure is always high with the car off.

The previous owner changed the clutch master and slave cylinders 3 months ago at Porsche Albuquerque. I just replaced the accumulator on a hunch and it did nothing.

I'm officially at a loss. Any help is appreciated.

 

If you got overflow into the clutch reservoir the only thing that can be at fault is the slave cylinder…Clutch reservoir overfilled versus steering reservoir low means slave failure….

 

Agree with flip did previous owner give/show receipt for work done? How far are you from dealer that did work, may want to talk to them.

 

Thanks for the input. It's 600 miles away, but I do have an invoice for it. (800 miles ago)

I'm obviously skeptical of a new part breaking, and I haven't heard of a broken slave varying pressure. And my catch is that I have access to a shop that's doing my labor for free... If I send it to the local dealer and it's not the slave cylinder, I'll have a large bill.

I just don't want to chuck parts at it. But maybe that's the only solution.

 

the broken/failing slave will most assuredly affect pedal consistency and given that it works in tandem with the accumulator, they really both need looking at again, to see if all is in fact new, as the PO stated and also that they're installed properly or not "faulty". it isn't uncommon for an accumulator to fail within months of replacement. they just act up. this sounds like the system wasn't bled out properly upon repair.

at least to me.

 

Bleeding isn't a bad idea but doesn't explain front reservoir gaining fluid.

 

as you know, that fluid migration is a faulty, or improperly working clutch slave.

 

It sounds like a bad accumulator. The OP said he replaced master & slave not accumulator. The test for a bad accumulator is to pump with the engine off. If the pedal get hard before 35 pumps , the accumulator is bad. 2 or 3 pumps - definitely bad.

 

He also said he replaced the accumulator and it "did nothing".

 

OOOps - missed that. RTFQ. New accumulator also bad or problem with hydraulics from PS pump causing inconsistent pressure.

I point to this because my car had that exact issue from the day I bought it. It took 4 years, but I finally did the GT2 conversion (tranny was out anyway) and all is fixed and working perfectly.

 

If you've got some place willing to do labor switch to the GT2 setup and avoid future weirdness...

 

every time i read of the slave delete ( and i KNOW its the *proper* thing to do ! ) i always regret being on my third accumulator lol, and second slave. ( geez, that doesnt read right )

the gt2 slave delete sure FEELS right...and really is. this from a guy with a "still" stock setup ha. barely touch the clutch anyway.. but

next time

 

Pretty sure my accumulator is a bit wonky but it's working. I start spitting fluid up front or anything else weird and it's going buh bye!

 

Thanks everyone for your input.

I took the vehicle to Porsche assuming they would warranty the slave cylinder. Instead, they claim the pressure tank / regulator is bad.

They want to do the tank, but I think I'm going to bring the car back and try the regulator. I'll update the thread with the results, and read everyone's good advice.

 

forgive me, but the regulator? do you know what that is relative to the clutch? this may be my dumb question of the day. curious if you could share what they claim is the cause of the inconsistent clutch action. just never heard this one before...