Jump to content

The RennTech.org community is Member supported!  Please consider an ANNUAL donation to help keep this site operating.
Click here to Donate

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)

964 shift solenoid testing


Recommended Posts

Ok, I'm going to throw out a serious hail marry here. Does anyone know the resistance values and or testing procedures for the solenoids in a 1990 964 tip? I have a car here that will shift into no forward gears. Reverse is fine, but as soon as you get into a froward gear, the car won't move. Any thoughts would be greatly appreciated.

Link to post
Share on other sites
    You can remove these ads by becoming a Contributing Member.

If you have a electrical failure in the valve body it should default to 3rd gear which is the limp home mode so you should still have a forward gear. I'd more inclined to think you have suffered a mechanical failure such as a broken sealing ring for hydraulic pressure in the front clutch pack. Did this happen suddenly or slowly over time? Are there any fault codes in the system?

Link to post
Share on other sites

If there was an electrical fault with the solenoids or interconnecting wiring such as the internal ribbon cable you would have a fault code. I don't think its an electrical fault but mechanical which is going to need to have the gear box torn down and inspected.

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • 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.