1999Porsche911

Sounds like air in the system. Give it a good bleed and the pedal should rise off the floor.

99firehawk

first i own 2 stick shift cars, drive every day and every day i drive quite a few p-cars and i still stall them out on occasion, it happens doesnt mean theres anything wrong with the car. The 997s are really easy to stall for the first 100 miles or so the clutchs are really sticky.
thats said.


1000-1200 rpms at a minumum is completly un neccesary 99% of the time , all thats doing is slipping the clutch that much faster and slipage = heat and wear which = posts of "Porsche sold me a car with a bad clutch and now they wont warrenty it'

99firehawk

btw there is no adjustment on a hydrolic clutch
and
stalling is always better then slipping for the car, just not for your ego

Coochas

SYMA - Are you by chance always in Sport mode? I have found that the car is much more easily stalled in this mode and it happened a number of times when I first got the car.

1999Porsche911

It appears that he is stating the the pedal engages only 1 inch from the floor, so the problem is that and not his driving ability. Pedal can only be that low if there is air in the system or something is bent or broken.

SYMA

Matter of fact I am in sport mode when this happens. I have 780 miles on the car.
Is idle at 650rpm's about where they should idle?, no ac on.

Thanks everyone for all the replies, seems like quite a few of us are stalling them. Hmmmmm

Coochas

Interesting....I thought so !
'Earlier' on with my car (I say 'earlier' because I've only had the thing for 16 months), I used Sport throttle mode very often. I found that this mode can be enjoyable for more 'sporty' driving but that around town (90+% of my driving) that it is easier to stall and frankly just not as smooth going from light-to-light in Sport mode.

As for the idle, I think mine is 650-750 once the car is very warmed up. After the initial 'choke' at about 1100, it seems to idle around 750-900,....and then once the oil is up (i.e. the whole damn car is warmed up) the idle settles down to 650-750.

Try not using the Sports throttle mode and see if you still have the stall problem.

cvazquez

+1

or a defective hydro master or slave.

OCBen

We're talking clutches gentlemen, not brake systems.

rcg412

Agreed - slave cylinder.... had the exact same problem on a saab.

cvazquez

When you press the clutch it activates a master and the master activates the slave which engages the cluth. Is the clutch now electronic on the 997 or is it Hydraulic?

Edgy01

Here's another thought. With two distinctly different accelerator maps it is possible that you can train your foot to handle starting off in 1st with, say, sport mode, and then it takes a different foot (more) to do the same thing in the non-sport mode. It forces you to train your foot to two different foot pressures.

Weasel

I've stalled mine several times, too. I've been shifting manual transmissions for nearly 25 years. If I'm not mistaken, clutches are different in C2/C4 than C2S/C4S -- self-adjusting in the latter, but not the former. I doubt it, but could this possibly have something to do with it? Are C2/C4 drivers stalling their cars more often than expected?

FWIW, I figured I was babying the car too much at first and that's why it was stalling. Now, it happens from time to time but a lot less often than before, probably because I don't baby it as much. Quite embarrassing when it happens though. Strangely, I can't remember EVER stalling my BMW. I've owned it since new and driven it as a daily driver for years.

diverdan

I stalled mine several times when I first got the car. It wasn't from a stop, generally, but when I was driving slowly in traffic, usually in second gear.
The problem was that I my previous cars (Z06, CTS-V) had high torque engines that tolerated loading at low RPMs. They would also give a little warning before they would stall. The F6 in the C2S runs smoothly right up to the point that it stalls out. SURPRISE!! This was compounded by the fact, which I didn't know, that you have to turn the key to off and back before the car would start again. I was embarrassed a couple of times before I figured it out.

I was spoiled, I admit it, with all that torque, and have adapted my driving technique to compensate.

jhbrennan

I think Dave nailed the problem for a lot of us. After the Ruf conversion, the Ruf ECU mods eliminated the Sport throttle mapping and I haven't had a problem since...but then again who knows, maybe my foot learned more!