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)

Any ideas on the cause of this mysterious squeaking sound

Recommended Posts

Hi all,

I have this mysterious squeaking sound that comes from the rear of my 996 only when braking to a stop and only when car has warmed up.

Occasionally I think a can hear a squeak or two when idling.

Any ideas on what it might be ????

Note: There are two runs in this 20sec video - first at walking pace, then second from traffic pace.


Link to comment
Share on other sites

  • 2 weeks later...

Hi Loren - I was thinking about that but since the squeaks only occur when the car is at normal operating temperature I was hesitant to try that as no water would be circulating ? I can make it let out a squeak or two every time, when hot, by releasing the brake pedal, letting the car roll forward and hit brake again. Would it rule in/rule out anything if I did same in reverse ? Alex.

Link to comment
Share on other sites

Hi again Loren, I would say no it does not squeak when idle (engine hot or cold) or when revving.

However, some more, squeak test results:

All with A/C off and PSM on.

Does NOT occur when engine COLD, at idle, when revving or whether braking in fwd or rev directions. However, there is some rear suspension "creaking" (but not the same "squeak") noise - more noticeable when car is nose level and down than nose up.

Does NOT occur when engine HOT, at idle, when revving.

Does NOT occur when engine HOT, when braking in reverse direction nose level, or nose up.

DOES occur when engine HOT, when braking in fwd directions, both nose level and nose down, and in both drive and neutral.

Squeaks and creaks more noticeable on the drivers side (remember this is a RHD car) and seem deeper/fwd in the engine bay than the belt area.

I'm now starting to wonder if its rear suspension or exhaust movement. Perhaps "creaking" when cold and "squeaking" when hot. Or maybe its both - i.e 2 separate problems.


Link to comment
Share on other sites

Hi fpb111,

Ok, I'm curious. I've not heard that term before....what does "tires talking" mean ? huh.gif

Also to brake with engine off, I assume I'd place the tip into neutral first then switch ignition off and then brake.

As to the wet road - how did you know I just detailed the car !!

Edited by amcleod1
Link to comment
Share on other sites

Tire talking = Little moan- chirp while braking accelerating.

Ign off, key on so that ABS PSM etc still active.

The right front tire on a GMC Safari van that I had would do that on every stop after it warmed up. It turned out to be the ABS activating on that wheel only?? I pulled the ABS fuse everything (brakes) worked fine and it stopped making the noise . The van had 180K miles on it and needed too much $$ to make it right so I junked it at the end of that summer. Never did spend time figuring it out.

Link to comment
Share on other sites

  • 4 weeks later...

i had a similar issue with my 2000 911 as well... similar squeeking when the engine was warm allthough i noticed it most of the time when the window was down while sitting at traffic lights

After months of chasing the problem it ended up being one spark plug half way off... did you notice any that were too easy to get out by any chance? haha

Link to comment
Share on other sites

Now that I've had time think about it - I think you're right - it was a loose spark plug. I was surprised how little effort was required to remove 1-2 off them. I also think the leak in the vacuum canister was the cause of my intermittent P1128 error - will need to drive for several week with no errors to be sure.

Link to comment
Share on other sites

Had the same issue with my first 996 a few years back... Took it to the dealer and they told me I may be looking at a new engine.:cursing: Wasn't going for that......

Luckily I went on this site and someone with the same issue had posted a sound clip. Same sound as mine. His diagnosis? A loose spark plug. Sure enough one of my plugs was loose. Problem solved.... Glad you got it fixed!


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.