valley996

i'll keep looking

I was wondering if it would be better just to get a whole rebuilt transmission, just in case it is the valve body. I have found them from $2300 to $3500

http://www.pelicanparts.com/catalog/shopcart/996J/POR_996J_TRANSM_pg4.htm#item25

$1344.00

http://www.amsperformance.com/cart/evoms_porsche-996-tiptronic-torque-converter.html

here is one $1695

I found one online for $1000. I will find the website and get back to you.

I started a new post under "limp mode" to get some explanations from users.

I guess we need to figure out what is working and not working in limp mode and that will narrow it down some.

I got your information. I haven't had a chance to do it yet. If you look at my original post, the Porsche mechanic guessed that it could be a weak solenoid in the transmission. If it is working and weak then it will not trip a code or check engine light. Porsche will not work on a transmission, but will only replace it at $8500. I have a schematic of the transmission if you need m...

Here is another thing i was told. One of the fuel injectors may be functioning incorrectly. If one is injecting too much fuel when not needed or not enough, the others may adjust to it too much or not enough. Sorta of like overcompensating.

I did have an email conversation with a ZF transmission rep. He said it didn't sound like a typical transmission problem. I hate to put $2000 into changing the torque converter and it not be it. I can forward the emails from ZF if you like.

is yours a 99 C2? What color?

We are definitely having the same problem.

Did you watch the video I put under the post about car surging at 2000 rpms? It is an Audi, but it does exactly what mine is doing.

I put in manual tiptronic yesterday, was in 3rd gear, going 23 mph, in my rpm range of 1500-2000, and it still did the surging. Would the torque converter be doing anything at that speed? I am trying to rule it in or out.

I think he was just going to change the resister in the old one. He kept saying it wouldn't surge if the car was cold, only when it warms up. It does it as soon as

I start off even with the engine cold. Now I have only had the car since June and it is never really "cold". I wonder if it would do it at start up when the outside temp is below 90 degrees.

A mechanic here in my town said he believes it is the coolant temperature sensor. He said it's not so much the sensor is bad, it is the sensing range is too narrow. He says he can change the resistor in it and it should help. He said it would cost about 2 hours labor. I guess I will try this too. I am just trying not to put a fortune into it. It will probably be next month before I tr...

I guess between the two of us we will just keep trying until we figure it out. I just hope we can!

I'm sorry to hear that. I drove mine hard yesterday with Seafoam in the gas. I had someone say it could be a clogged converter also. I haven't tried it. Have you had your fuel pressure checked?

I saw that too. I think they used Seafoam. I was about to try that too. Let me know.

no not yet, it is driving me crazy! I talked to a mechanic today that says he feels it is definitely a fuel/air/computer type problem. Also, could be an air leak somewhere. He did not think it was the torque converter. I have no codes, which makes it difficult.