Does Dongfeng Tianlong Renault 420 have downhill water temperature?

The faults caused by the downhill water temperature of Dongfeng Tianlong Renault 420 are. Thermostat failure: Thermostat has been in the big cycle position, and the engine is in the big cycle after the cold car is started, resulting in low water temperature and the engine cannot be warmed up.

1. Water temperature sensor failure: The failure of the water temperature sensor leads to the water temperature identification error, and the water temperature may not be the actual water temperature of the engine.

2. The electronic fan is abnormal: it is not controlled by the engine and is in a constant rotation state, resulting in the engine water temperature never rising.

3. The temperature difference between the engine and the outside world is large: the weather is extremely cold and the water temperature will rise slowly. It is recommended to warm up the car for 2 minutes before continuing driving.