Can you hear if the fan is actually turning on? If it is not coming on, unplug the two-wire coolant temperature sensor while the engine is running. That should force the radiator fan to run as a safety measure. If the fan runs when you do that, the rest of the circuit is okay. The next step would be to observe the actual coolant temperature on a scanner, to see what the engine computer is seeing.
Wednesday, May 10th, 2017 AT 10:03 PM