porsche12

they dont have a tech line do they? I found a couple other place that do ZF transmissions but they charge to diagnose a problem over the phone

man you are finding alot of information on this, I would be willing to try the torque converter rebuild first

Do you have a telephone number to ZF and what state are they in, I'm pretty lost right now. If you could e-mail me that pdf that would be great my e-mail is mchaffins@aol.com

wish i would have seen this before taking it out, im going to start reading I'll talk to you later

I'll look that over maybe get lucky and figure it out, if i do you will be the first to know

I wonder if Vertex builds good transmissions, they said 3000.00

not that hard to get out, it only took about three hours

yes, at a friends shop

I have the transmission out and was planing on just replacing the torque converter but now im wondering if i should just replace the whole transmission

not yet, will know in a few days

Hey Loren I have a question for you and hoping for some help, I have a 2001 porsche boxster with a bad tiptronic transmission I found a good low milage 1999 transmission with torque converter, will this year transmission work and do i have to change control units if so? thanks for the help

Let me know if you fix yours, I have to fix this its just no fun to drive. I might start taking it apart tomorrow or friday

I talked to a guy at German transaxle and he said it is probably the torque converter going bad, i would like to change the valve body first but its not an easy part to find, guess ill start looking for a torque converter

let me know if it fixes your surging, I'm going to do some research to find out if its the hydraulic control unit in the transmission, most people call it the valve body if so that can be done while the transmission is in the car, maybe its the speed sensors in the transmission, I hope its not a bad transmission

OK I found the problem, I unplugged the big round cannon plug on the transmission and it doesn't surge anymore, it makes the transmission go into limp mode and stays in fourth or fifth gear but you can still drive it, just a slug off the line but no more surging. unplug yours if you can it real easy just twist the round plug socket counter clockwise and it comes off

Haven't had much luck, A friend of mine at a shop let me borrow an OTC fuel injector cleaner kit i have to disconnect the fuel lines and pull the fuel pump relay, hope it helps but i doubt it. My car is a 2000 and silver

I seen the video mines doing the same thing, i wish i knew if it was the transmission or torque converter causing it, I ran a scan on the transmission and found no codes. my transmission shifts fine if i run it through the gears. Might set this thing on fire and forget about it

I'm going to disconnect the exhaust today to see if it helps, if it doesnt im going to install a fuel pressure gauge to the system and run the gauge in the car to see if the fuel pressures fluctuate. what if you install a new head temp sensor would that help or do you have to install a resistor to the new sensor too? talk to you later

i tried the top end engine cleaner, the Porsche dealer here buys it from the GM dealership, I took the hose off and dumped it in slowly while revving the engine 1500 to 2000 RPM, drove it and it still has the surging at steady driving speeds, Now I'm going to take the exhaust system apart at the converters and run straight pipes out to see if its maybe a plugged converter, I'll let you ...

going to try it and will let you know if it helps

I've been doing some research on this and talked to some porsche techs, they said carbon builds up in the heads and ports on the tiptronic cars because they don't get revved up as much as standard transmission cars, they told me to pull the vacuum hose off the side of the intake and run some top end engine cleaner through the intake system, supposedly this breaks up the carbon. I'm ...

hey have you found out why your car is surging, I have the same problem