What are the phenomena after the high temperature of the engine, and what are the causes of the high

The high temperature of the engine is manifested by the thermometer showing an increase and a decrease in power, and if not treated in time, it will cause the engine to boil and eventually stall. In addition, it is never possible for the exhaust pipe to drip oil, as you mentioned that the usual exhaust gas carbon deposits on the inner wall of the exhaust pipe are caused by the formation of water droplets by cold air (this phenomenon is usually caused by ignition of hot cars in cold places or in winter).

1. The engine power decreases.

When the car is driving at low speed above 35 temperature, downwind or heavy load, the engine overheating phenomenon is more serious, which further reduces the inflation coefficient of the engine, resulting in a decrease in the amount of fresh mixture entering the cylinder, a decrease in the average effective pressure of the cylinder, and a decrease in engine power.

2. Fuel consumption rises.

When the engine temperature is too high, it is easy to make the lubricating oil in the cylinder form colloidal carbon deposits under high temperature and anoxic conditions, and the carbon deposits accumulate on the piston top, combustion chamber wall, valve top and spark plug, forming a hot spot, causing the engine hot spot fire, producing abnormal combustion, so that it is easy to deform the engine block and cylinder head, and even produce cracks or warping, and it is also easy to burn the cylinder gasket, resulting in a decrease in cylinder pressure and an increase in fuel consumption at the end of compression.

3. Wear and tear of parts.

Lubricating oil can oxidize and deteriorate due to high temperatures, and gum and deposits adhere to the friction surfaces of piston rings, cylinder walls and other parts, reducing thermal conductivity. The viscosity of the lubricating oil decreases, the oil pressure decreases, the lubricity becomes poor, and the oil film on the cylinder wall weakens under the influence of shock load, thus aggravating the wear of the parts.

The most likely thing is that the thermostat in your pump is blocked, because it is based on the principle of spring necking, I repair the car, and I have encountered a lot of cars that are no problem caused by this thing, because the high temperature inside is easy to rust and stuck, and it is useless for you to check anything else, and the water flow becomes less and the water temperature is naturally high. Listen to me and tear it down or replace it with a new one. It doesn't matter if you use it on a hot day, this thing is used only when it is cold in the north in winter, and it is not necessary to be hot in the south.

What phenomenon will be caused by the high temperature of the automobile engine, carefully look at how the cylinder bed blows gas.

The causes of high engine temperature are: cooling system failure, such as lack of water, thermostat not working, water tank dirt, water pump and fan problems, etc.; Long-term low gear and high speed, thick mixture or late ignition time, dust on the heat sink, and high temperature when the cylinder gasket is hot. It is recommended to go to a repair shop for an inspection.

Check the water tank connection line for leaks, and then check whether the coolant is sufficient, if there is no coolant available in the car, you can replace it with mineral water first, but replace it with a new coolant afterwards.

Precautions for high engine temperatures.

If your truck has been using water as coolant for a long time, and there is a high temperature, after checking that there is no problem in other places, it is recommended to check whether the inside of the radiator is blocked by scale, if there is a lot of scale, you can go to a repair shop specializing in radiators to clean and dredge.

When the engine is idling, the gasoline burns incompletely, producing carbon monoxide. Generally, vehicles equipped with air conditioners have better sealing performance. The vast majority of people who spend hours in this environment will experience dizziness, burnout, and memory loss.

At the same time, the occupants of the car exhaled a large amount of carbon dioxide, causing a sharp decrease in oxygen in the car. Therefore, the working state of the air conditioner should be properly adjusted, or the windows should be opened every once in a while to breathe.

The water tank is blocked, the cylinder mattress is damaged, the water pump does not run, the electronic fan does not work, and the thermostat cannot be opened.

The problem of engine overheating does not only occur in summer, but also can occur when driving, so it is still necessary to overhaul the engine. If the vehicle has a high temperature, the first thing that comes to mind may be the failure of the vehicle's cooling system, which is generally composed of water pumps, water tanks, cooling fans, thermostats and other components, and if one of these parts fails, high temperatures may occur.

If the vehicle has been in an overloaded state, there will also be high temperatures, because the heat of the engine work is not dealt with in time, then it is normal for it to strike. Broken vehicle water tanks or antifreeze kettles can also cause this phenomenon, so this is also something to be aware of.

Engine overheating will cause a series of failures in the vehicle, first of all, the cooling system is needless to say, this is the first part, and then the engine piston temperature is too high will also cause the failure of the cylinder, in addition to its gasket and some internal spare parts The life will also be greatly reduced, and the external related starters, generators, regulators and other equipment are also easy to burn and scrap. If the engine of the vehicle is seriously damaged, then the overhaul is certainly unavoidable.

In order to avoid the engine temperature is too high, it is still necessary to maintain the regular maintenance of the vehicle, first of all, it is necessary to keep the external of the cooling system clean, then the vehicle water tank and antifreeze should be sufficient, and finally it is necessary to avoid the engine working for too long under heavy load, so as to effectively prevent unnecessary troubles and improve our driving safety.

There are several reasons for the high water temperature of the engine:

1. The cooling fan does not rotate. The cooling fan may be controlled by a thermostat switch; It may also be controlled by a water temperature sensor.

2. The cooling medium is insufficient.

3. The thermostat is damaged.

4. The water tank is blocked.

Workaround:1Add enough cooling water.

2.Check that the thermostat is working properly. If the thermostat cannot open the large valve in time according to the regulations, it must be replaced with a new one in time; If the new product cannot be replaced in time, the thermostat can be temporarily removed, and the faulty thermostat must not be placed at the outlet of the water jacket.

3.Parking in the shade. If the engine water temperature is too high, you should choose a cool place to stop and cool down.

4.Pay attention to the indication reading of the water temperature gauge at any time while driving, and the requirement should not exceed 95. In special cases, in order to enhance the convection of cooling air, the hood can be lifted to facilitate ventilation and heat dissipation.

If you encounter the phenomenon of "boiling the pot" on the way, do not move the "boiling car". Do not turn off the heat immediately after finding that the pot is boiling. Idle should be kept running and all blinds should be opened. If the ignition has been turned off, the car should be shaken immediately with a rocker to prevent the cylinder from sticking.

Hello, there may be the following reasons for the high temperature of the engine:

1. Check whether there is no antifreeze, that is, engine water.

2. Check whether the oil should be replaced, if the viscosity of the oil is too high, it will also lead to high temperature.

3. The fan motor does not move or the fan clutch is faulty, and it cannot be cooled down normally.

4. The three-way catalytic converter is blocked or the tube is ruptured, resulting in the exhaust being blocked, resulting in overheating of the engine.

5. After the long-term use of the water pump is highly worn, the parts are worn out and fall off.

6. If the pressure of the cover of the radiator is different, the spring will be loosened and the cover cannot be closed tightly.

7. The thermostat cannot be switched on and off normally, which is usually caused by mechanical failure or incomplete filling of the cooling system. It may also be that the newer thermostat has a different temperature coefficient than the original.

There are seven common reasons: 1Radiator surface blockage, 2

Blockage inside the radiator, 3The fan clutch failed, and the length and tightness of the fan skin were insufficient, 5Ignition timing error, 6

High exhaust back pressure, 7The thermostat fails. Please adopt it, thank you.

If the cooling system fails, there is a risk that the engine will cause high temperatures. For the following reasons, when the water pump is damaged, the coolant cannot circulate in the cooling system, and the heat generated by the combustion of the engine cannot be taken away; Lack of coolant or no qualified coolant, no cooling medium in the cooling system, can not replace the engine heat, resulting in high temperature; When the thermostat is damaged or stuck, the engine only has a small cycle, and the water tank does not have the effect of heat dissipation, and the heat dissipation intensity is low, resulting in high temperature of the engine; Damaged fans that don't rotate can also cause high temperatures. When the surface of the water tank is covered with dirt, the heat conduction is not good, and the heat cannot be dissipated into the air in time, which causes high temperature of the engine;

Hello, I am your exclusive technician, attentive, careful, dedicated to answering your car questions, for you to find the corresponding problem solutions and solutions, will provide you with a satisfactory answer! I hope this service can help you, if it is helpful to you, I look forward to your praise and attention. Hello, the more common high temperature of the engine is generally caused by the thermostat not being opened or the water tank leaking or other pipeline leakage.

The reason why the thermostat cannot be opened is that the coolant has not been replaced for a long time, resulting in more internal scale during driving, resulting in damage to the thermostat.

The high temperature of the engine is caused by the following reasons: 1. There are many reasons for the high water temperature of the engine or even "boiling", such as damage to the electronic components of the cooling system (thermostat, cooling fan), poor heat dissipation of the radiator, insufficient coolant, etc.; 2. Pull over, but don't turn off the engine immediately! Because the temperature of the coolant is already high and the cooling capacity has reached its limit, if the engine is turned off immediately, the boiling coolant will stop circulating (for most engines, the water pump is driven by the crankshaft; 3. Of course, if it is an electric water pump engine, it will be better), too high temperature can not be cooled, and the engine is also unbearable.

If the engine is idle for a while, the constant circulation of coolant can still reduce the impact of high temperatures on the engine; 4. Check whether the antifreeze is lacking, resulting in high engine water temperature. The circulation of the coolant, whether the circulation is not smooth. Secondly, you can also check that water temperature sensors, water pumps, thermostats, cooling fans, etc., may cause high water temperatures.

If you don't have a strong hands-on ability, you should go to the repair shop for an inspection.

Generally, there are five reasons, the first is caused by the damage of the water pump, the second is caused by the lack of coolant or the use of qualified coolant, the third is that the thermostat is damaged, the fourth is that the fan does not rotate, and the fifth is the dirty surface of the water tank.