Clutch fan operation
I have an issue with the clutch fan kicking in. I was under the impression that once the temps started to get around 195-200 degrees the clutch fan would kick in. With mine, it starts to kick in at ju...
Forum Discussion
The fan is actuated by the air temperature not the eng temperature. There are different fan clutch systems but most I believe kick in when the air temps get to 160 F. Mine does the same thing when the outside air is hotter like this week coming back from Maine the outside air was between 95 and 100 F and the dash AC on high the fan clutch came on often when eng temps were about 210-220 F. On 70 F days it would never come on unless I was climbing a steep hill and it would kick in just before the red mark on the gauge. Having said all that as Pappappy said the gauge is probably not that accurate. When I checked mine with the IR gun the temp gauge was 20 degrees higher than the thermostat housing. My thermostat housing was 195 but my gauge said 215 or so. Mine is the old Chevy gauge that shows 100,210 and 260 F. You kind of guess between 210-260.
