The failure of the automobile water pump usually manifests itself in three aspects: idling speed, water leakage, and noise. Among them, the damage of the water pump directly affects the idle speed, and the speed is unstable. After the vehicle starts, the speed will jump. If there is too much resistance, the engine will stall. However, leakage is a common fault, and it is a symptom of high water temperature after the coolant leaks, which seriously affects the wear of the bearing. Noise is a sign that the pump is starting to fail, so pay attention.
A damaged car water pump usually exhibits the following symptoms:
1. The idle speed is unstable. The car water pump is connected to the belt and draws cold water from the tank to cool the engine. If there is a problem with the rotation of the water pump, it will directly affect the engine speed. The phenomenon is the problem of unstable vehicle speed, which generally occurs after the engine has been started for a period of time. If the power is too high, it will shut down. From these phenomena, it can be preliminarily judged that the water pump is damaged.
2. Coolant leakage. This is a common problem. The engine near the water pump is prone to water leakage. At this time, the coolant will leave water marks on the vent hole of the water pump, and the engine that lacks coolant will have a "high fever", wear and tear will increase, and in severe cases, it will smoke or even catch fire. At this time, first check that the important parts of the cooling system (cooling fan, radiator, water pump, etc.) are damaged, and do not force the car to drive.
3. Noise problem. When the car water pump shows signs of damage, there will be abnormal noises, and the abnormal noises are likely to be caused by internal bearing damage or loose impellers or detachment from the shaft. At this time, pay attention to driving and repair the corresponding parts in time, otherwise the water pump will go on strike, and the above situation will occur if the car engine is not sufficiently cooled.
Summary: The function of the automobile water pump is to transport the coolant from one place to another for cooling, or to increase the pressure to convert the mechanical energy of the original motion into liquid energy. If the water pump is damaged, the above-mentioned series of symptoms will appear. I believe you also know the importance of water pumps, right? If you continue to drive reluctantly, more parts will be damaged, and later maintenance costs will also increase.