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)

Coolant pressure relief valve raised when engine warm?


Recommended Posts

Hi everyone,

Quick question, I've recently noticed that the black plunger type relief valve (the one with a sort of spring clip on it) located just forward of the water reservoir cap on my 2004 C2 tiptronic appears to rise when the engine is at normal running temperature (as if open) and falls back down again when it's cooled down.

I'm not losing any water (that I can see anyway) the car has no visible leaks and never goes higher than 82 degrees on the temperature gauge. I'm led to believe that this shouldn't be happening and am not sure if it is safe to drive this weekend.

My water level appears to be steady midway between Min and Max whith a cold engine, and rises a little when warm.

Can any one suggest a reason for this rise and fall, (of the valve) and is it safe for me to drive the car? No other warning lights or issues to the best of my knowledge, thanks in advance.

Link to comment
Share on other sites

Ah I see, for some reason, it has been suggested that this is not normal by a few people over here in the UK.

I hadn't noticed it before, and thought perhaps it should only rise if the system was OVER pressurized, possibly highlighting a problem.

If Loren says it's normal, thats good enough for me. I will question my friendly UK forum members for some clarification on this one! I will drive it happily this weekend and as usual, keep an eye on my temperatures and fluid levels.

Many thanks for your help everyone. :thankyou:

Edited by gusmagoo
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.