Are far as replacing the cooling fan motors, you don't need to drain the coolant or remove the radiator. However, you will need to follow the directions to remove the radiator to access and remove the blower motors.
I attached the directions below from the radiator removal and replacement. Take a look through them and let me know if they help.
Also, I provided the direction for radiator replacement. Again, you don't need to remove it. You just need to remove several of the parts as though you are replacing it just to access the fan motors.
I crossed out the procedures you don't need to do. I wrote "end" when you reach the point of fan removal. Replacement is the reverse of removal.
Also, here is a link that shows in general how it's done. You can use this to help guide yourself.
Let me know if this helps or if you have other questions.
See pics below.
Images (Click to enlarge)
Friday, September 3rd, 2021 AT 9:36 PM