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has anyone lowered the degrees at which the radiator fan is activated. Through winols

Plamen

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Bulgaria
#1
has anyone lowered the degrees at which the radiator fan is activated. Through winols
 


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Ontario, CA, USA
#2
Yes, through the tuner. I tried out a different tuner and I noticed my coolant temps were like 215+ and the fan wasn’t turning on, before temps never reached 200. I asked and he told me if I had a lower temp thermostat, I told him I had the motorcraft 180 degrees. After that he changed the duty cycle and temps returned to normal. Probably my previous tuners tuned for it based on the year of my ST. Since mine had the recall and they installed the lower temp thermostat. And they probably knew. Maybe
 


Intuit

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#3
A cleaner cylinder favors warmer engine temps. Running it too cold for too long, slowly fouls the cylinders with carbon build up.
 




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