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