Mercury Sable overheating and shutting off, previously fixed leaks and thermostat replaced on Mercury Sable

Some Mercury Sable owners report experiencing overheating and shutdown issues even after addressing leaks and replacing the thermostat. These problems may stem from a faulty water pump, which is essential for circulating coolant through the engine. Additionally, owners note that not flushing the cooling system regularly can lead to blockages that hinder proper coolant circulation. A malfunctioning radiator cap can also prevent the cooling system from maintaining the correct pressure, exacerbating overheating issues. Furthermore, if the heater core has been recently replaced, its functionality should be verified as it can impact the overall cooling system. Some owners have also found that improper installation of a new thermostat can lead to persistent overheating problems. Lastly, low levels or poor-quality coolant may contribute to these overheating concerns. If these issues continue, consulting a mechanic for further diagnosis is recommended.