Yes, the spinning fan.

The center part of the fan reacts to heat and as the viscous fluid inside heats up the fan spins faster and pulls more air across the radiator. On cool startup the fan will lope but as the car heats it will spin faster. The test is to put a rolled up newspaper into the spinning fan after it’s warmed up. If the fan doesn’t seem tight then the clutch needs replacing. Obviously, not something you want to do without taking care.

Also, look around for coolant leaks. Maybe put a cardboard underneath the radiator, look for drips overnight.

Lastly, once cooled off, open the coolant cap and check the level. If way low, good chance it has air in the system.

Check utube for bleeding procedure. Air in the cooling system can definitely cause overheating.


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