Jump to content

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

valley996

Contributing Members
  • Posts

    173
  • Joined

  • Last visited

Everything posted by valley996

  1. Fluid level was good. It is much worse going uphill, almost nonexistent going downhill. It does it in all gears if it is in the 1500 to 2500 rpm range. It is smooth above 2500 or below 1500rpms. It does not miss while in park and revving the engine.
  2. They did and the fluid was good. It does get much worse going uphill and almost nonexistent going downhill mainly because I'm not using the throttle or no load on the transmission. It does it in all gears.
  3. Yes, that is why the test is there. Run the Tiptronic tests and you might be lucky and it tells you exactly what is wrong. Loren, Nothing on the Tiptronic test. Could this not be a transmission problem? It is smooth while in park revving the engine, but it surges while in gear and moving. Could it be an ignition issue, coil pack, etc? Thanks, Aaron
  4. Thanks for the advice. Could the mechanics be completely off and it not be the transmission? It is smooth while in park, but when moving that is when it acts up. I had one person say it could be a coil pack. Is this a possiblity?
  5. I have and I called them yesterday. Does anyone have any experience with them. The cost is $3300 for the transmission. Then I'll have uninstall and install locally.
  6. I had the Tiptronic test done today and no codes. I am at a loss. I am considering a rebuilt Vertex transmission. Anybody have any experience with them?
  7. I have a 1999 996 C2 Tiptronic. I have to replace the transmission and I can't afford the Porsche Dealer quote of $8,300. Any suggestion or do you know anyone in Virginia or North Carolina that is good?
  8. Yes, that is why the test is there. Run the Tiptronic tests and you might be lucky and it tells you exactly what is wrong. I really appreciate the advice.
  9. Loren, I found out today the Porsche mechanic did not run the Tiptronic computer test. Could we be missing something by not running the test or would it show up anyway on the main computer check? Thanks
  10. In need input into tire size I can put on my stock '99 996 wheels...I've got 17" wheels right now with 205/50/17 in the front and 255/40/17 in the rear. Front = 7 J x 17" 55mm offset Rear = 9 X 17" 55mm offset. The front tires look small, but the rear looks good. What size tire can I put on the front to make it look taller, but not wider? Thanks
  11. Loren, Does this possibly sound like a solenoid problem? Thanks
  12. I can't answer that. What is piwis? What are thoughts about it?
  13. Here is what the Porsche mechanic said. He said the main line pressure for transmission fluid control loses pressure on and off which is a sign of a weak solenoid. He suggests to replace transmission ( I can't afford!) also, he says I can replace valve body or individual solenoids. Does this sound right? 1. He did a 89757 internal malfunction test with piwis tester - none registered. 2. fluid level - good. 3. tested MAF - good 4. tested for power and ground on TCM module - good 5. removed torque converter lock up wire and test drove- good 6. checked fuel pressure - good 7. no codes in vehicle 8. solenoid circuits are intact and complete Diagnoses: He said the main line pressure was checked with a piwis tester and it it showed the main line for transmission fluid control loses pressure on and off which is a sign of a weak solenoid. Is this possible and what is the cost of a repair?
  14. No it doesn't drop out of the gear, it just surges while in the gear. It does it in all gears as long as it is in that RPM range. It also gets worse when it is climbing a grade.
  15. I don't know about electronic throttle. I took it to a garage today and he said it was most likely the transmission. He referred to it as the car looking for a gear while in the 2,000 rpm range. He noted that if it was climbing a grade it became worse. He received no error codes so he felt it was mechanical. He recommended going to the Porsche dealership to rule out a software problem. Any thoughts?
  16. I have it scheduled in the morning. I'll post the results. Thank you for the suggestions. It's my first Porsche!
  17. I have a 1999 996 carrera tiptronic and it has a surge in engine speed between 1500 and 2200 rpms. The tac and engine speed goes up and down, in a steady rhytm. It does not do this while in park at the same rpms. Also, when I am in that range and I mash the pedal there is a stutter, almost like a miss. I know this is hard to explain, but there are no check engine lights. It does this in all gears in the same range. It is smooth below and above the range I have listed. I need help!
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.