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)

white Steam rising from centre n driver radiator 996tt


Recommended Posts

The steam can be seen when the car is parked with the engine still running. It can't be seen when the car is moving tho. The dash coolant temperature gauge remains normal at around 90 - 95 degree celsius.

Edited by niceguy
Link to comment
Share on other sites

  • Moderators

Obviously, you have a leak. I would not be driving the car until you find out what is leaking and get it fixed, it is not going to heal on its own; and a sudden coolant dump could end up seriously overheating a very expensive to replace engine. Get the car looked at.................

Edited by JFP in PA
Link to comment
Share on other sites

I'll echo JFP comments. This is an issue that needs sorting straight away and not to be ignored. The radiators can become clogged with road debris/leaves and such which result in reduced air flow and rot of the condensor/radiators. Be sure all rads are clean and the cooling fans are operating correctly.

Link to comment
Share on other sites

An update of the issue of my 996tt, it didn't lose any coolant according the level of coolant bottle in the engine bay and no steam is coming out from the from drive side radiator as well. I only noticed the steam after rain or a car wash. Furthermore, the coolant temperature wasn't 90-95C. Instead it was only 80-82c or so.

To sum up,

1 no coolant loss

2 no steam in the dry (even after some driving n idling)

3 coolant temp 80-82C

An update of the issue of my 996tt, it didn't lose any coolant according the level of coolant bottle in the engine bay and no steam is coming out from the from drive side radiator as well. I only noticed the steam after rain or a car wash. Furthermore, the coolant temperature wasn't 90-95C. Instead it was only 80-82c or so.

To sum up,

1 no coolant loss

2 no steam in the dry (even after some driving n idling)

3 coolant temp 80-82C

4 that steaming radiator was replaced in 2009

Edited by niceguy
Link to comment
Share on other sites

2nd update of the problem,

1 no loss of coolant

2 steam appear only in wet weather

3 in dry weather, the radiators do not even feel hot when I put my hand into the grills of the front bumper (not sure if the condensers are in the way causing the inability to feel the heat)

I plan to remove the bumper tonight to inspect for any leak and remove the dirt stuck between the condenser and the radiator.

Moreover, the abs & Pam light always reappear at the same slope (decline) in the car park when the car is still cold. V Minor engine rev fluctuation can be felt at idle. It drives like a train otherwise.

Link to comment
Share on other sites

Problem solved

Having removed the bumper yesterday, I found there were loads of leaves n dust stuck to the radiators, which is exactly what i thought what it might be. To confirm my finding, I left the bumper off after cleaning the radiators, clearly i could see smoke coming out of the front (mouth) n the 2 radiators on the side. Once dried, there were no more steam, thank god. So, this the steaming issue should be the same for all 996 models and the smoke should only appear in the wet or when the radiators are wet with no loss of coolant.

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.

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.