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Old 08-04-2011, 06:26 PM
ard ard is offline
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Join Date: Mar 2006
Location: Sierra Foothills, California
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I think this is normal. At 40C or 110F the car is 'fighting' to get as much air as possible over the AC coils... the added external heat and engine heat force the highest fan speed.

I assume at night when the air temp is cooler it runs at a bit slower speed?

Almost all cars will switch on this fan when the AC kicks on....
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