RE: S2 tech question in Panorama
 

In the May 2002 issue of Panorama, there's a technical Q&A called: "1991 944 S2 Radiator cooling fan" The fans cycle on and off every 10 seconds. According the Burris, who answered this question, it is working as designed. I disagree.

I am experiencing the same problem with my S2, and the mechanics are baffled by it! It started to happen soon after I had a coolant flush and a lower temp thermo switch put in: perhaps the lower temp switch is the culprit.

Did someone here post this Q&A question? I'd love to compare notes!

Thanks,
-Zoltan.

Is there any air in the cooling system? I believe the thermo fan switch must be totally immersed to function. If there is any air it may kick the fan off momentarily.

Just a stab, but I know it's not easy to burp all the air out of the system, and the thermo fan swith is at the top of the radiator.

No air in the system, as far as I can tell. My mechanics are stumped on this one too.

I know PorscheG96 with his 968 is experiencing similar problems, and I have seen numerous posts regarding fan switches recently. But be a spring thing.

By the way, with the fans working the way they are, my temp guage never sees anything over the second bar from the bottom.

-Zoltan.