Re: Hydraulic Radiator Fan 4.7L Questions Please
You used the jeep for around 20 days and it never overheated anymore. Did you leave it running in idle for prolonged times, or yesterday was the first time?
If it cools down when driving, but overheats when standing still, i would say there is something wrong with the cooling fan. It makes a lot of noise, but is it moving a lot of air as well? Does it suck the air from the front side of the radiator? (when fan running at high speed, you can feel the air being sucked in front of the radiator) There should be several air buffers around the radiator which prevents false air being drawn by the fan.
Did you check visually the radiator core if there is any obstruction for the airflow.