Thread: I think I just found my overheating problem .........

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I did the on all the time thing, and went thru 3 fan motors in 5 years, mind you at the time I was doing a lot of long distance high speed commuting, and at speed I could hear the fan just screaming. I think being on like that just gave it a boost, although the motors were cheap A/Z motors. I probably should have just put a on/off switch.

There is never a need to have the fan come on with a turn of the key, especially when the motor is cold. You don't need to cool a cold motor.
I had a thermostat control on one time, and I also had a toggle to over ride the switch. After the thermostat control took a crap, I just removed it and just had the toggle to turn the fan on only when I needed it.