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 Help Needed Please :0)

marksawtell
 Share

Recommended Posts

marksawtell Member

marksawtell

Posted
Posted

I have a1999 porsche 996 c2 and I have noticed only 1 radiator fan is coming on when the car is hot. I have checked the fuses an have tried swapping the l.h.s fuse with the r.h.s fuse for the fans to check it wasnt the fuse. Can anybody tell me where the relays are for the fans and any helpful advice of what this could be and whether there are independent temperature switches for each fan.

Many thanks in advance!

  • Admin
Loren Member

Loren

Posted
  • Admin
Posted

The relays are above the fuse box.

Each relay position is labeled. These 4 are the in the second row from the bottom - 3rd to 5th positions from the left (19, 20, 21, 22).

post-1-12757425844_thumb.png

marksawtell Member

marksawtell

Posted
  • Author
Posted

The relays are above the fuse box.

Each relay position is labeled. These 4 are the in the second row from the bottom - 3rd to 5th positions from the left (19, 20, 21, 22).

post-1-12757425844_thumb.png

Thanks Lauren for a quick reply. What did you mean by "about the fuse box" . Ive looked around and cant see any relays in the footwell.

marksawtell Member

marksawtell

Posted
  • Author
Posted

Up under the dash - I corrected my typo -- 'above' the fuse box area.

post-1-127574431843_thumb.png

thanks loren... I swapped over the relays and still not got the drivers side working. Looks like it might be the fan itself on that side. Will take it apart this afternoon and test the fan.

Thans again

  • Admin
Loren Member

Loren

Posted
  • Admin
Posted

Up under the dash - I corrected my typo -- 'above' the fuse box area.

post-1-127574431843_thumb.png

thanks loren... I swapped over the relays and still not got the drivers side working. Looks like it might be the fan itself on that side. Will take it apart this afternoon and test the fan.

Thans again

Could be the ballast resistor - fairly common failure.

Rob001 Member

Rob001

Posted
Posted (edited)

I had the same problem which I temporary solved by running a small wire between the hi speed and low speed relais of radiator cooling fan which was not working.

See below link from ppbb to determine if it is the fan of balast resistor and how to run the wire to get the fan running on hi speed only.

www.ppbb.com/phorum/read.php?6,1509504,1509681

Rob

Edited by Rob001
greerj1 Member

greerj1

Posted
Posted

I had the same issue. It was the ballast resistor on the drivers side. I replaced them both. It will take about 2-3 hours. Clean out the radiators whilst you are in there.

James Greer

  • 3 weeks later...

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.