What happens when the engine temperature suddenly rises while the car is running?

What is the general cause of high temperature in cars?

Hello! Hello everyone! In summer, driving a car on the road will inevitably encounter the phenomenon of high temperature of the car, do not panic and do not worry when encountering this phenomenon. The following will teach you how to deal with the high temperature of the car, and what is the general cause of the high temperature of the car.

What is the general cause of high temperature in cars?

1) Phenomenon. When the car is running, the water thermometer pointer points to the high temperature range for a long time.

Radiators are often accompanied by the phenomenon of "boiling the pot".

It is difficult to turn off the engine.

Gasoline engines are prone to premature combustion or deflagration, and diesel engines work roughly.

2) Causes. 1. The engine coolant is insufficient.

2. The water pump is faulty, and the drive belt is worn or too loose.

3. The main valve of the thermostat cannot be opened or opened too late.

4. The blinds cannot be fully opened.

5. The heat sink is dirty or damaged, or the cooling pipe of the radiator is blocked.

6. Fouling or blockage of the water jacket and water distribution pipe.

7. The fan clutch is engaged too late or the cooling fan does not work, the fan rotation resistance is too large, the blades are installed in reverse, the blades are damaged, etc.

Here are a few cases where the engine temperature is too high as follows:

1. Fan failure. The failure of the fan affects the normal operation of the fan, and the specific reasons include the electromagnetic clutch of the fan or the control and switch of the fan motor, which is too late in time and closes too early; The fan never turns; The fan silicone oil high compatifier failed.

2. Insufficient coolant. The coolant is insufficient, and the internal consumption is too large. The main reason is the damage of the cylinder potential.

3. The coolant circulation is too small. The specific reasons are: the failure of the pump wheel; Damage to the thermostat; There is too much limescale in the radiator or body waterway, and the cleaning is not timely.

4. The engine is working poorly. The main reasons are too late ignition, too thin mixture, too much carbon deposits in the combustion chamber, and engine deflagration.

5. The amount of lubricating oil is insufficient. It will make the moving parts not get enough lubrication, so that the friction resistance increases, the wear is aggravated, and the heat generation increases. At the same time, the temperature of the lubricating oil rises, and the viscosity of the corresponding lubricating oil decreases, which promotes friction, heating and poor heat dissipation, resulting in overheating of the engine.

6. Heater heat dissipation failure. The main reasons are: there are debris blocking between the heat sinks; deformation of the heat sink of the radiator; The inside of the radiator is clogged. The blinds cannot be fully opened.

Consider a few aspects,1A leaky water tank leads to a lack of antifreeze.

2.The electronic fan does not rotate.

In this case, your engine's water temperature sensor is malfunctioning, so there will be a sudden indication that the water temperature is high.

This should be due to a malfunction of the thermostat or a cooling fan not turning, and you should first check whether the car's coolant is circulating properly.

It could be that there is a problem with the thermostat, that the cooler is not turning on, or that the tank is clogged.

Then you need to check it, there are many reasons for the high water temperature, and you need to check it specifically.

It must be that the cooling system is malfunctioning, or the thermostat is broken and the water is blocked, causing the water to not circulate, or the pump is broken, or the cylinder gasket is broken.

Is the coolant enough, and the water pump belt is broken? Whether the fan is working properly.

Causes of high engine temperature and how to deal with them.

Causes of high engine temperature and how to deal with them.

1. The thermostat is broken, and the large circulation of coolant cannot be opened at the set temperature;

2. The coolant of the engine cannot be circulated through the water tank to dissipate heat;

3. The power of coolant circulation is gone, usually because the water pump is broken;

4. There is air in the cooling system;

If the vehicle is driving on dirt roads or muddy roads for a long time, there will be some dirt adhering to the radiator, which will affect the heat dissipation effect over time, resulting in too high water temperature;

2. If the thermostat branch is not working properly, it will also cause the engine temperature to be too high. Generally, Douqing is judged by the temperature difference between the space connected to the thermostat and the small water pipe. If the temperature difference between the two water pipes is large, it can be judged that the thermostat is not working;

This situation should be that your cooling system is not activating, causing this temperature to be too high. When the temperature is low, the fan should not be activated.