What is the normal water temperature in a truck? What is the reason for the high water temperature in the truck? It is now a hot day in summer. For many diesel truck drivers, high engine water tempera

What is the normal water temperature in a truck? What is the reason for the high water temperature in the truck? It is now a hot day in summer. For many diesel truck drivers, high engine water temperature is encountered almost from time to time. So what is the reason for the high water temperature in the truck? What is the normal water temperature in a truck? Let’s learn about it next. Truck diesel engines now basically use water-cooled diesel engines. Because the cooling effect is good, it is easy to adjust the cooling intensity when the temperature or workload changes, so that the diesel engine always works within the specified temperature range (65°C~95°C). Therefore, trucks Water temperature is generally within 65°C~95°C. Similarly, diesel engines will also encounter the problem of high water temperature. The reasons for high water temperature in trucks are generally as follows: 1. Lack of coolant or improper selection. Because the internal temperature of the diesel engine is extremely high when it is working, the requirements for filling the coolant are also very strict. If the coolant is severely lacking, the heat generated by the engine parts cannot be taken away in time, causing the water temperature to be too high. 2. Insufficient heat dissipation area. Diesel engines all match the heat dissipation area of ??the cooling water according to power and load. However, since the coolant of water-cooled diesel engines is mostly water mixed with ethylene glycol, tap water may also be added in summer. During long-term use, due to substandard coolant quality, a large amount of scale is produced in the heat pipe, blocking the heat pipe and reducing heat dissipation efficiency. 3. The thermostat fails. The function of the thermostat is to automatically adjust the amount of water entering the radiator according to the temperature of the cooling water, and change the circulation range of the water to adjust the heat dissipation capacity of the cooling system and ensure that the engine operates within a suitable temperature range. If the thermostat is faulty, the car's cooling system may not be able to carry out large circulation, causing the water temperature to rise. 4. The cooling fan is faulty. When the vehicle is running at high speed, the heat generated cannot be transferred to the antifreeze in time, which affects heat dissipation, which then causes the temperature of the antifreeze to rise, causing problems such as boiling. 5. The circulating water pump is faulty. Water pump failures include bearing lockup and impeller damage. Bearing lockup is relatively rare. Impeller damage is common when the impeller cracks or the impeller becomes loose from the pump shaft, which causes the coolant circulation speed to slow down and easily causes the engine temperature to be too high. fault. 6. The engine injection time is too late. Unburned diesel will cause the diesel engine temperature to be too high, and the increase in cylinder head temperature will also cause the engine water temperature to overheat.