Hello,
The radiator cooling fan used on the 4.0L engine is an hybrid fan design.
The hybrid fan system consists of a low speed viscous driven mechanical fan and an electrical fan.
The fan can become inoperative due to a bad relay, module or the fan itself can the faulty.
You should check the relay first. It can be tested:
https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit
Here are couple of helpful articles:
https://www.2carpros.com/articles/how-an-electric-cooling-fan-works
https://www.2carpros.com/articles/replace-electric-fan-motor
I have attached the diagrams for the fan as well as relay and the module.
Please let me know of any questions.
Images (Click to make bigger)
SPONSORED LINKS
Wednesday, August 4th, 2021 AT 10:09 PM