Jaguar Super V8 overheating issue with uneven radiator temperatures after thermostat and heater valve pump replacement on Jaguar Super V8

Some Jaguar Super V8 owners report experiencing overheating issues even after replacing the thermostat and heater valve pump, often indicated by uneven radiator temperatures. These temperature discrepancies may suggest a malfunction within the cooling system. Additionally, owners should verify the thermostat's functionality by monitoring the radiator hoses, which should remain cold until the engine reaches normal operating temperature. A faulty water pump is another potential cause of overheating, as it may fail to circulate coolant effectively. In more severe cases, a leaking head gasket could also lead to overheating problems. Other contributing factors might include a clogged radiator, a malfunctioning radiator fan, low coolant levels, a defective sensor, or air entering the cooling system. Jaguar vehicles typically operate within a temperature range of 160 to 170 Fahrenheit (70 to 90 degrees Celsius), and exceeding this range often signals an underlying cooling system issue. It is recommended that owners experiencing these problems have their cooling system thoroughly inspected to identify and resolve the root cause.