Sorry. The service info for this vehicle says that your vehicle has the electric fan on the radiator for the AC condenser and then has the cooling fan as an electric clutch (see attached). That means then ECM would apply the clutch and remove it.
If yours has a viscous clutch then that explains the issue you are seeing.
The non ECM controlled are the two types you are mentioning. One is spring controlled. As the spring heats up it begins to engage the clutch until it is fully applied.
The other is fluid filled or a viscous clutch. These too have a spring which allows the silicone to leave the reservoir in the front of the clutch and engage the blades. The spring moves as it get hotter.
Here is a video that gives more detail on this:
https://youtu.be/UwM4OqsLek4
Since you are able to spin the clutch by hand, that shows the spring inside has stopped moving which opens and closes the opening for the silicone to engage the clutch. That means when the engine turns on, the centrifugal force causes the silicone to engage the clutch then when you shut the vehicle off, the silicone drains back and disengages the clutch allowing you to spin it by hand.
Long story short. It needs to be replaced.
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Monday, February 17th, 2020 AT 6:37 PM