It is possible, but it is certainly not the thing I would chase first. I would start at looking at the front of the radiator and see if there is anything blocking the airflow through the fins. Grass, and other stuff can collect up there and block off the airflow and the makes the radiator less and less able to shed the heat from the coolant. I once had a neighbor with the same complaint and it turned out that a plastic bag has got up under there and blocked off the front of the radiator.
If that check's out okay, then the next place I would look is to see if there is a blockage in the coolant flow. Radiator passages are very thin and can easily become blocked if the coolant is not maintained. It could be time for a coolant system flush.
With regard to the fan, you should be able to feel it (with the engine off please) try to turn it with your hand. It should allow you to turn it but it should offer some resistance. If it just freewheels like a roller skate wheel, then I would replace it.
Nov 1, 2018 at 8:41 AM
