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Fan In The Rear Wing ? When Does It....


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Guys,

I have a 00 996 C4. When does the fan in the rear wing comes on? I believe my car is running hotter then normal. Temp needle hovers at about 1'o'clock when drving thru stop and go traffic, no AC and outside temp around 75oF.

Also when I stopped to fill gas after driving yesterday, I noticed some coolant around the filler cap area. Seems like it came out from the overflow valve.

So when I came home, I parked my car and let the engine run to see if the fan comes on or not. Let the engine idle for about 10 min, temp needle was around 1'o'clock, but the fan never came on.....!

Also no warning lights in the cluster.

Is something wrong with my car? Should I take it to the dealer? I have full warranty.

Thanks for help.

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Have a look at the thread here

The fan is not a concern the leak near the cap is. The cap AND the tank should both be pressure tested by your dealer. If either or both fail the pressure test then they need to be replaced. A fairly common problem on the earlier 996's.

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Update: Just came back from the dealer. They pressure tested, both the cap and tank. No leaks, no pressure lost.

However the tank was very full, Above the max level and that may have caused the coolant overflow from the overflow valve. So all is good for now.

Thanks for help.

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Ya i think, when I took it in last time, I wanted to make sure that all fluids are topped off and I think at that time they must have over-topped it.

I certainly did not add any. Car got a new engine when I got it. Unfixable RMS issue. So it only has 2000 miles on the new motor (total of 22500 miles). I ran the car as specified during the break-in period. Did not exceed > 4200 RPM.

Car went thru the usual initial oil consuming phase. And my MPG has also been steadly getting better. Started from 11, now it is at around 18.

Over all real nice ride. Peppy and fun.

Thanks for help Loren.

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