05 Columbia

mndriver

curmudgeon extraordinare
Supporter
I'd start with checking the wires on the fan control solenoid.

IMG_20161207_172017.jpg

Also, do you have a dash switch for your fan?
 

mndriver

curmudgeon extraordinare
Supporter
I am taking single steps here.

Last December. I had the red wire on that solenoid corroded inside the coil break finally. Fan ran 100%
 
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