Overheating Fan not working

as for noise will have to inspect under hood,could be fan or belt or pulley ,water pump .these are some things it could...My suggestion for overheating is replace thermostat. If your car has electric cooling fan then it may not be working..turn defrost on and if fan kicks on then fan motor is good..Now this does not mean that fan is working properly because fan is controlled by heat sensor switch that kicks fan on when motor reaches heat range......Things i would have checked....hope this information helps and good luck and Please rate my post...

CHECK FOR LOW COOLANT LEVEL AND REPLACE THERMOSTAT AND THE RADIATOR PRESSURE CAP.IF CAR OVERHEATING AND COOLING FAN NOT WORKING.CHECK COOLANT FAN FUSE AND RELAY.IF BOTH OKAY,HOT WIRE COOLANT FAN,IF FAN WORKS, PROBLEM COULD BE FAULTY COOLANT TEMPERATURE SENSOR,OR FAULTY PCM, IF COOLING FAN DONT WORK WHEN YOU HOT WIRE FAN.THE COOLING FAN ASSEMBLY NEED REPLACING.

Hi,
Please check your fan relay and sensor for malfunction. Otherwise you can by bass the the fan power to prevent your car overheating. Your car will get overheating if fan does not work of course.
Regards, Jay

new compressor full of freon fan comes on inside radiator fan dont come on fuses are good

water pump may be defective

With the sensor unplugged and the fan works,, replace the new sensor,,,,, it is probably defective. I have seeh this before.

It may be a faulty sensor or bad fan relay. They both can be tested with ohmmeter or multi-meter

Is it an hour idling? If you are overheating going down the road, this is either a thermostat, or a plugged radiator. The fan will contribute to overheating sitting still.

Make sure your fan is functional. If the fan is not working this can be a problem as it will not cool the engine.

Hi,

Most normal causes for overheating would be:

• clogged radiator,
• insufficient coolant level (radiator and reservoir);
• too soft radiator hoses;
• defective/leaky water pump (impeller);
• water pump belt/tensioner;
• thermostat (mechanical);
• thermal switch;
• radiator fan, fan clutch;
• fan relay;
• fan fuse.

In some instances, the fan only works in conjunction with the A/C and/or heater and therefore would only work if either of those two are enabled.

Should your particular vehicle be using a radiator fan with clutch, that could also cause the fan blades not to spin even if the fan motor is turning.

Pls check the above mentioned components.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.