Re: My Radiator Fan Cooling Runs Slow
The hydraulic cooling fan should run between 300-500 rpm with engine idling and engine temp normal. I have never tried to stop the fan on my jeep, but this doesnt seem to be normal. I would remove the coolant temp sensor connector, to see if the fan goes to high speed, as a test. You will get a check engine light with related dtc for the coolant temp sensor, which has to be errased after reconnecting the connector.