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)

Radiator fan 'switch on' temp higher for '99 996?

dammad
 Share

Recommended Posts

dammad Member

dammad

Posted
Posted

I realize that information from the Carrera service manual indicates the low speed radiator fans should come on at 96.75c and high speed at 102c, but measuring mine appears to show the low speeds coming on at 100c (measured by ECTS in Durametric V6) rather than 96.75c.

The #24 post in this thread appears to show that early carreras might switch at 100 (low) and 105 (high) but I've not seen this any where else.

http://www.renntech.org/forums/topic/33858-overheating/page-2?hl=%20high%20%20low%20%20fan%20%20temperature%20%20dme

My question is: could the engine temperature sensor be a different (possibly now updated) part number from the 2002- cars?

I can't think of another good reason for mine switching on at 100c rather than 96.7c...

Link to comment
Share on other sites
  • Moderators
JFP in PA Member

JFP in PA

Posted
  • Moderators
Posted

I realize that information from the Carrera service manual indicates the low speed radiator fans should come on at 96.75c and high speed at 102c, but measuring mine appears to show the low speeds coming on at 100c (measured by ECTS in Durametric V6) rather than 96.75c.

The #24 post in this thread appears to show that early carreras might switch at 100 (low) and 105 (high) but I've not seen this any where else.

http://www.renntech.org/forums/topic/33858-overheating/page-2?hl=%20high%20%20low%20%20fan%20%20temperature%20%20dme

My question is: could the engine temperature sensor be a different (possibly now updated) part number from the 2002- cars?

I can't think of another good reason for mine switching on at 100c rather than 96.7c...

The temp sensors are accurate within a range of +/- a few degrees, and sometimes change a bit with age. The fans are triggered by the DME, so there also can be some variance there. What you are seeing is normal behavior,

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing
×
×
  • 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.