What are the reasons for the high temperature of the SAIC Maxus G20 engine hood?

[McWyatt]

SAIC Maxus G20 engine hood high temperature reasons are as follows: Fan issue: The fan motor does not move or the fan clutch fails, preventing normal cooling. Exhaust issue: The three-way catalyst is blocked or the pipeline is broken, causing exhaust blockage and leading to engine overheating. Coolant leakage issue: If the cooling system's pipeline is broken, causing coolant loss, the heat dissipation cannot work properly. This situation can be improved by simply replacing the new pipeline. Pump issue: After long-term use, the pump wears out severely, and parts wear and fall off. The only solution is to replace the new pump. Radiator cap issue: If the pressure of the radiator cap is different, it will cause the spring to loosen, and the cap will not close tightly; the thermostat blockage issue, the thermostat cannot open and close normally, usually due to mechanical failure or incomplete filling of the cooling system. The updated thermostat has a different temperature coefficient from the original one, leading to the cause of the failure.