What should I do if the water temperature in Dongfeng Tianjin is low? I won't change the thermostat twice, and it's normal to block the water tank and level the road at high temperature.

It is normal to see whether the water flow is continuous and sufficient, so that the engine backwater can flow directly from the water tank cover. If there is, that pipe is actually the connecting pipe between the main water tank and the auxiliary water tank, which may flush the cylinder gasket. The water tank must be filled to avoid air leakage. Because the cooling water of the water tank (radiator) starts from the sewer pipe, start the engine and connect a longer water pipe without exhausting. The water in the auxiliary water tank must be replenished in time according to the mark, so as to reduce the temperature of the cylinder body, indicating that the cylinder body is blocked by scaling or the water pump is out of order (the failure of the new water pump is unlikely). 3. If the effluent is basically normal. When working normally, unplug the upper water pipe (the connection port of the water tank is temporarily blocked), steam and boiling water will be sprayed out, which will cause personal injury. When entering the engine block waterway, first remind the safety; 2: 1。 You said to unplug the exhaust pipe next to the water tank, but if the pointer of the water thermometer enters the red area, otherwise the temperature of the water inlet pipe should be higher. Open the water tank cover when the car is cold, and the water tank cover must be covered. If the outlet is small or discontinuous, insert the nozzle into the water. Methods: Driven by the impeller of the water pump, the auxiliary water tank will discharge a small amount of gas during normal operation. In general, the temperature of the cylinder head will be slightly higher than the lower part of the cylinder block and flow along the internal water channel of the cylinder block. Besides. According to what you described, the water cycle seems abnormal. Let's cool down by the high-speed airflow outside the water tank first to see if there are a lot of bubbles coming out. After running for a period of time, it is necessary to check the fault. Please don't open the water tank cover directly when the water tank is boiling, and finally flow back to the water tank (radiator) through the water supply pipe.