When the water temperature of the car rises, the fuel consumption will not change and decrease

Fuel consumption will increase when the water temperature of the car rises.

Under normal circumstances, the engine water temperature is around 90-98 degrees, too high or too low will not work. The light case will affect the efficiency of the engine, and the heavy case may lead to scrap. Too low water temperature is easy to increase fuel consumption, and insufficient fuel will also lead to excessive exhaust emissions, and will also cause engine wear and affect engine life.

The cause of low engine water temperature is usually a damaged thermostat or a faulty cooling fan.

When the thermostat fails, the valve won't close, and the coolant keeps circulating, the engine water temperature may be too low. The thermostat should be checked. In the case of electronic fans, a faulty circuit causes the electronic fan to rotate normally; For silicone oil fans, damage to the silicone oil clutch will also cause the fan to not rotate properly.

These faults will cause the phenomenon of low water temperature and should be repaired in time. The low water temperature of the engine has an impact, and the impact of low water temperature on the engine is mainly the increase of fuel consumption and the formation of carbon deposits, which will seriously cause abnormal wear and tear of the engine.

When the temperature is too low, it is difficult for the water temperature to rise, or the freezing point of the coolant is too low, the fuel consumption will be abnormally high, and the coolant can freeze and damage the water tank and pipes. Too low a car water temperature will lead to poor atomization of gasoline, incomplete combustion, decreased power, and increased fuel consumption. The engine wants the water temperature to be normal, so it will always be in a state where the mixture is too thick and the amount of fuel injected will increase, resulting in increased fuel consumption and carbon deposit.

The normal working temperature of the engine is generally about 90 degrees, and the low water temperature has a certain impact on the engine performance. The first is the mating clearance of the moving parts. When the water temperature is low, the expansion of the parts will be small, so the mating gap is too large, and the power will drop.

The temperature of the oil also decreases, and the viscosity increases, which increases the operating resistance of the engine and affects the power output. After the vehicle is started, the engine should automatically run at high idle speed, and wait until the idle speed is reduced to about 800 rpm before starting to drive.

Do not rev the engine more than 2500 rpm and do not load the engine more than 30% until the water temperature reaches the normal value, i.e. do not press the accelerator pedal more than one-third, and do not engage in strenuous driving such as acceleration or braking. After the water temperature reaches the normal value, drive normally.

I think so, because when the water temperature is low, the oil flow is poor, and if the engine is not lubricated enough, the running resistance will increase, and the fuel consumption will increase.

If the water temperature of the car is relatively low, it is easy to cause the atomization of gasoline to decrease, and the fuel efficiency is insufficient, which will lead to a large amount of fuel injection, which is easy to form carbon deposits, and then the fuel consumption will increase.

Causes and solutions for high water temperature in cars:

Insufficient coolant.

Coolant leakage or lack of coolant will cause the engine water temperature to rise, then we should check the coolant situation, if the deficiency is added to the appropriate place first, and then after a few days to check if the fluid level is seriously dropped, if so, then we need to find the leak location.

The cooling fan is faulty.

If the cooling fan fails, the heat generated by the vehicle cannot be transferred to the antifreeze in time when the vehicle is running at high speed, which will affect the heat dissipation, and then cause the temperature of the antifreeze to rise, resulting in problems such as boiling the pot.

Circulating water pump malfunction.

Water pump failure has several situations of bearing locking and impeller damage, bearing locking is relatively rare, impeller damage is common after impeller cracking or impeller loosening from the pump shaft, resulting in coolant circulation speed slowdown, easy to cause engine temperature too high failure.

Effect of antifreeze on car water temperature:

Since there are a lot of tiny tubes on the antifreeze bottle, if the antifreeze leaks due to looseness, we can choose to wrap the broken tube with a rope or plastic bag.

If it's just a lack of coolant, add it and you're done. Then wait until the cooling water temperature drops before adding antifreeze. There is really no coolant, we can also add clean water to replace it temporarily.

It is important to note that clean water should only be used for emergency purposes, and we should replace it with a new coolant as soon as possible after the water temperature returns to normal. If it's not the coolant, then you need to check the tank fan.

Insufficient coolant.

A coolant leak can cause its temperature to rise. At this time, you should check whether the coolant is leaking! If there is, then the leaking pipes should be repaired quickly, etc.

If not, add the same brand of coolant in time! It is not recommended to add water, especially in winter, even if it does not cause a breakdown, it will have a diluting effect on the coolant!

There is a problem with the cooling fan.

The cooling fan will cause the heat generated to be unable to transfer to the antifreeze in time when the vehicle is running at high speed, which will affect the heat dissipation, and then cause the temperature of the antifreeze to rise, resulting in problems such as boiling the pot! In this case, if you are driving, reduce your speed first. Check if it's a fan problem, if so, repair it in time, don't wait for the pot to boil before repairing!

3.Circulating water pump problems.

Once the water pump fails, the water circulation on the thermal side of the engine cannot be carried out normally. As a result, the engine cooling system fails, and the phenomenon of "boiling the pot" will arise! Be sure to detect it early and solve it early.

Generally, if there is a problem with the water pump, it may be that the bearing is locked or the shimpeller is damaged! It is unlikely that the bearings will lock up. If the shutter wheel is broken, just replace it!

Reasons for the high water temperature of the car:

1. The cooling fan does not rotate, and the cooling fan fails.

2. There is a problem with the cooling medium, and the condensate is used up, which leads to the high temperature of the car water tank.

3. The thermostat is damaged, and the car can only be sent to the 4S shop for maintenance if this fault occurs.

4. Or if the water tank is faulty, replace the water in the water tank or replace the water tank.

5. The ignition method is incorrect, resulting in too high oil pressure.

6. If the pump fails, find a professional person for maintenance.

Solution: 1. If the water temperature is very high before starting the car, the car may not be easy to start, and there are many reasons for the high temperature of the car.

2. The cooling fan does not rotate, the coolant is insufficient, the water temperature gauge is faulty, the water tank is blocked, etc., which may cause the high temperature of the car.

If the water temperature gauge is normal, when the temperature reaches the red warning line, slow down, and when it is safe to do so, pull over to the side of the road, taking care not to turn off the engine.

3. Do not pour cold water on the engine, wear gloves and gently unscrew the lid of the water tank, wait for the water vapor to be slowly discharged, and after the pressure of the water tank drops, add cold water or antifreeze.

4. Regularly check the body to ensure that there is no dirt around the water tank, which causes the heat dissipation capacity of the water tank to decrease.

Solution: The order is from simple to complex, from low cost to high cost.

1: Check whether the water tank is leaking, open the water tank, see if the water surface height is below min, if the water level is very low, it is likely to be leaking. Add water, open the exhaust screw near the engine to exhaust, and check for water leakage.

The presence of gas in the tank can also cause the water temperature to be high. Water leakage is generally a cool car leakage, so check after the hot car is cooled, pay attention to see if there is a leak in the warm air and water pipe joint leading to the driver's cab, and look at the ground under the car when you get up in the morning when the leakage is large. If there is no leakage, but the water gradually falls below the lowest point after a week or half a month of filling up the water, then there is another possibility that the cylinder gasket is leaking and the water seeps into the engine and consumes.

Open the oil filler to see if there is white foam and bubbles, see if there is oil in the water tank cap, and see if there are white water droplets on the oil dipstick. If so, water seeps in. The cylinder gasket needs to be replaced.

2: Change the water temperature sensor. If you don't boil the pot, it just shows that the water temperature is high, and it may also be caused by the inaccurate water temperature sensor. Change the water temperature sensor.

3: Change the thermostat. After the water temperature reaches 90 degrees, open the cabin cover and touch the water pipe near the engine to heat (be careful of hot hands), the water tank is not hot, that is, the water is not circulating. It's hot on both sides. Otherwise, the thermostat should be replaced.

4: Water change pump. The water pump is the most expensive, so you have to change it last.

I have seen with my own eyes that there are a lot of rubber strips twisted in the pump of my car, and the pump is not working well, and the water cannot be circulated, causing the water temperature to rise rapidly. This necessitates the replacement of the pump.

If you haven't gone through the above steps... Then I can't think of any other way for the time being...

Here's what causes the engine to be too hot

1. Thermostat failure: If the thermostat fails, the coolant of the car can only be circulated for a small time, and the water tank cannot work reasonably, resulting in the increase of the engine water temperature of the car;

2. The cooling fan does not turn and the water temperature of the engine is too high, which may be because the temperature control switch is not turned on, or the water temperature sensor is out of order, which will cause the cooling fan to not rotate;

3. Water tank blockage: due to the long-term use of the water tank, the water tank may be blocked, whether it is the scale inside the water tank or because there is something blocking the water tank outside, the engine can not be reasonably cooled, and the engine water temperature rises;

4. Insufficient coolant: This is the first problem to consider when the engine water temperature is high, if you find that the coolant is insufficient, you need to add it in time to avoid the high temperature of the engine when driving.

The car will be equipped with a water tank, which has sensors, coolers, radiators, thermostats and other components, mainly to cool and cool when the engine temperature is high, and it will stop working when the temperature is normal. However, if the water temperature is low, it will actually increase fuel consumption, which is why it is necessary to warm up the car at low temperatures.

When the engine of the car is working, if the water temperature is lower than that of the hall source wheel for a long time, the fuel consumption will definitely increase.

Now, every part of the car has a lot of sensors, data, and information, which are controlled by the on-board computer. If the water temperature in the vehicle is low, the computer system in the car will default to the engine being warmed up all the time. At this time, the amount of fuel injected increases when the car starts, because the system will get the car into an optimal state as quickly as possible in a relatively balanced way.

As a result, more split-bond fuel is injected and the air is sucked in to form a thicker mixture, which increases the engine speed and thus increases fuel consumption. Unless the water temperature reaches normal operating temperature, the engine speed will slowly return to normal speed.

Therefore, it is necessary to warm up the car before driving, especially when it is cold in winter, you need to warm up the car sufficiently, otherwise working at low temperature will increase the wear and tear of the car engine. In the summer, you can warm up the car according to the situation.

After the car starts, it will reach about 90 degrees after a while, and then start again. So when it comes to 90 degrees it's very fast, in minutes.

After the vehicle starts, the temperature of the antifreeze rises rapidly, and after the pointer reaches the ** position, the temperature of the heat exchange balance antifreeze does not rise, and generally speaking, the temperature reaches the middle position when the start is the best, which is one of the reasons why the vehicle should be heated up before starting.

The normal water temperature of the motivation is between 80 and 90 degrees, and it is not right to be too high or too low. On the other hand, the heat generated by the engine is difficult to meet the needs of conventional air cooling, so the automobile engine widely adopts the water-cooled thermal conduction design. The role of the cooling system is to keep the engine working in the most favorable temperature range to increase the power of the engine, reduce engine wear and fuel consumption.

Temperatures that are too high or too low can adversely affect the operation of the engine.

The engine coolant temperature is not as low as possible, nor is it as high as possible, it needs to be within a certain range, and the normal temperature is the ** 90 of the pointer. After the vehicle starts, the temperature of the antifreeze rises rapidly, and after the pointer reaches the ** position, the temperature of the heat exchange balance antifreeze does not rise, and generally speaking, the temperature reaches the middle position when the start is the best, which is one of the reasons why the vehicle should be heated up before starting.

Generally speaking, cooling system failures mainly include leakage, insufficient coolant, cooling fan failure, and circulating water pump failure.

The thermostat control does not change under normal circumstances.

The car is generally not lowered when it is running!

In the summer, the people in the car will naturally be much more comfortable when the air conditioning is turned on, but as the load on the engine increases, the fuel consumption also increases. In addition, the fuel consumption of the vehicle will increase when the traffic is congested, and if the air conditioning is added, the fuel consumption will be larger and larger. In addition, high temperature and high humidity in summer will also lead to increased fuel consumption.

When it is too cold in winter, prolonging the hot car time appropriately will naturally increase fuel consumption. In addition, when the engine water temperature is too low, the computer will control the fuel injector to inject more fuel, so if your commute is close to work and the water temperature does not rise to normal in cold weather in winter, then your car may become a typical example of high fuel consumption.

The squeak is the aging of the belt and needs to be replaced. The high water temperature may be caused by an over-dirty check who meets the condenser.

It should still be loose, you can check whether your water pump is normal.

You check the water alkali in the tank, and then look at the thermostat.