Anything will break, but the pump is a durable product when it is designed. Generally, it does not need to be replaced regularly, but it is necessary to check it regularly. After all, the pump is the heart of the colder system. If there is insufficient circulation capacity, it will affect Directly using a car, you can check once for 60,000 kilometers. From the perspective of the water pump itself, it is not easy to judge whether it is good or bad. You can judge whether the water pump is abnormal by looking at the state of the water in the water tank. In the case of neutral gear, open the water tank cover, drive the car to give some fuel, and see if the water inside can form a vortex state. If the throttle is increased, the vortex will flow more vigorously. There is a thermostat on the side of the water pump. It does not turn on when the car is cold. You can wait for the water temperature to come up. When the electronic fan is working, the thermostat is turned on. The vortex will change greatly with the throttle. If this is the case The condition indicates that the pump is very good. If it is not, the pump may be out of order and needs to be replaced.
Listening to sound is also a method, but it requires certain experience. Compared with normal sound and different noises, some people with sensitive ears can judge the abnormality of the water pump, such as the bearing is broken, and the sound is often sharper. If the fixing link is loose, it will also cause abnormal sound.
More inspections are usually on the outside of the water pump. For example, if there is any leakage of coolant, it is often caused by the aging of the sealing ring. Generally, there is no repair value. If you see some water marks near the water pump, check for leakage. Correspondingly check the coolant level, whether it is lowered, if it is, it needs to be refilled in time, and at the same time the leakage is corrected.
The pulley and belt of the water pump may also have problems. They will age after a long time. The water pump is often driven by the fan belt. If the belt does not work, slips, the output torque of the water pump is insufficient, and the cooling cycle will be abnormal.
Also note that the impeller may be corroded. If the quality of the coolant is not good, the impeller of the water pump will be corroded and damaged, so you can check the color of the coolant. If it is a bit turbid, pay attention to this problem.