Jump to content

Server Lease Renewal/Software Licenses

Our yearly server lease, software licenses, as well as hardware operating costs, ARE due Dec 6th, 2021. 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)

Strange new noise from engine - 1998 911


Recommended Posts

After a rather spirited drive this morning here in South Florida, I heard a strange noise coming from my engine.  As my 911 is a Cabriolet, I first thought it was another car around me.    When I got back to the garage I confirmed it was indeed me :(

In summary:

  • The sound goes on for 30 seconds then would stop.  It would take another 2-3 minutes then it would come back on.
  • Something that caught me by surprise was that I turned the car off and was going to turn it back on to see if it continued.  When I just turned the key to turn-off the engine immobilizer the sound came on even though I had not physically cranked the engine yet.
    • When I started the engine it did not come back on.   I let it run for another 5 minutes but the noise did not return
  • I checked to see if it was throwing any ODB2 codes with my Durametric, however, all was clear.
  • Oil levels are fine
  • I have enclosed two videos
    • One is with the engine running (and the sound disappearing)
    • The second is when I turned the key, but not yet cranked the engine.


Any advice/insight into what it could be would be appreciated.    Also would like to know can I drive it to my mechanic (assuming that I would need to), would I be causing any long term problems?


Thanks - Steve

Link to comment
Share on other sites

  • 5 months later...

This was a long time ago. Any update as to what it was.


I would have used a stethoscope and listened to various parts of the engine, both on top and below. I know noises can travel in an engine making it difficult to pin point it, but it might help.

Edited by IXLR8
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.