Jump to content

Server Lease Renewal/Software Licenses

Our yearly server lease, software licenses, as well as hardware operating costs, WERE due Dec 4th, 2022. Our current donations have fallen far short of the funds we need to renew. Please remember the RennTech.org community is Member supported so please consider a donation to help...  THANK YOU!

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)

Wheel/Tire Balancing

Recommended Posts

I’m fairly certain it’s time for me to get the tires/wheels re-balanced on my '04 C4S cab as I’m getting a pretty good vibration at highway speeds, and I hear the howling noise coming from the rear tires that’s been described on other posts. I have Hankook tires with 11,000 miles on them, and they have plenty of tread left as I generally don’t drive the car hard (although I can see that the inside sections of both rear tires are wearing faster than the middle and outer sections as mentioned on many other posts, but even the inside sections still have ample tread left). There’s a local shop that I trust that has the Hunter GSP9700 “road force” balancing machine that’s highly recommended by Tire Rack, but one of the Porsche TSB’s regarding tires and wheels says “use only the Porsche center clamping set for balancing”. Does this mean I need to have this done at a Porsche dealer? Thanks in advance for your help.

Edited by shark715
Link to comment
Share on other sites

Road force balancers work great. Porsche also sells water for your coolant tank, but I prefer to buy water from my supermarket. ;)

If you are hearing howling you might be ready for a new set of tires, I would measure the thread depth.

Depending on the vibration, it could also be due for an alignment.

Link to comment
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.

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.