where is the sensor located on the fans my fans kick on at 230 and kick off at 210 when their suppose to kick on at 195

Asked by Jul 21, 2017 at 12:07 PM about the 2001 Pontiac Grand Prix GT

Question type: Maintenance & Repair

1 Answer

100,335

No that's too cold, from observing live data on a lot of vehicles I have seen that most fans turn on between 220 and 230 degrees and turn off between 200 and 210 degrees. I have also noticed that the ECT sensor and the coolant temp sender can have different readings, usually the coolant sender reads slightly hotter than the ECT sensor, the only way to see the actual engine temperature is to install a manual gauge on the engine itself so there is no outside interference. However your readings are well with the temperature range of the on/off settings.

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