Every summer, the high temperature will make us very uncomfortable, in fact, the truck will appear a lot of discomfort, caused by high temperature of engine are so few, as long as the patient can successfully solve the problems one by one investigation. Today, we have sorted out the common causes of the high temperature of 7 engines, and we hope to be able to help you.

Radiator surface blocked

In fact, the engine temperature most problems are caused by the blockage of the surface of the radiator, the radiator due to the need for large amounts of air to heat, so on the design before the general cooling hole is relatively small, not easy to fall into the Yang catkins.

In general, we will choose to use brush car high-pressure water gun for cleaning, cleaning needs attention, need to adjust the head of the gun to spray dispersed state, reduce the pressure of spraying water.

Radiator internal obstruction

In fact, trucks are now very little use of water to make cooling liquid, so Baotou North rush parts radiator internal blockage has rarely occurred. But some friends like water, and the water contains a lot of minerals, so it is easy to deposit into the radiator, forming scale, affecting heat dissipation, resulting in high temperature.

If your truck long-term use of water as cooling liquid, and the emergence of the phenomenon of high temperature, in other places to check no problem, I suggest to check the radiator have been jamming, if the scale a lot, can go in the garage for clearing the radiator.

Fan clutch failure

Baotou North clutch clutch fan role, I believe we all know, but if it fails, and when the coolant temperature is still kept low speed, will certainly cause the engine temperature is too high.

In fact, causing the clutch fan fault the engine temperature is not a few, but whether the normal operation we have no way to judge, so the current can only rely on substitution method to verify whether the fan clutch has been damaged.

Fan belt tightness is insufficient

Fan belt tightness caused by insufficient engine temperature is high, very easy to distinguish, with the hand press, obviously feel relaxed, or refueling door belt slip, creak, all indicate that the belt tightness is insufficient.

The low tightness of the belt will cause the fan and the pump to rotate too low, and the heat dissipation ability will drop seriously. Therefore, the engine temperature is too high to be unavoidable.

Ignition timing error

In fact, enter the electronic era, basically have no error caused by the ignition timing of engine temperature, but in some of the old mechanical pump engine, because of the high temperature caused by timing errors still occur.

If your car is using a mechanical pump and has a high temperature phenomenon, then it is advisable to check that the ignition timing is within normal limits.

High exhaust backpressure

Many people may not know, the engine exhaust high back pressure will also cause high temperature phenomenon, resulting in high exhaust backpressure for two reasons:

1, Baotou North exhaust fittings exhaust butterfly valve, poor return, resulting in poor ventilation.

2, the muffler or SCR catalytic converter internal blockage, resulting in exhaust backpressure is too high.

Thermostat failure

As you all know, thermostat is responsible for controlling the temperature of engine coolant in a reasonable range. It can not be too low or too high.

If the thermostat fails, the engine temperature is too high when the temperature is not turned on or turned on when the temperature is above the opening temperature.

If everyone in the vehicle encountered in the engine high temperature phenomenon, we must check the thermostat working state is normal, but don't put the thermostat without dismantling, because after removal may cause the engine temperature control, resulting in high fuel consumption, increased wear phenomenon.

Sum up

The reason for the high temperature of the truck is far more than these, these are only the most common of several, and in addition to the reasons for the vehicle itself, improper operation will cause engine heat.

So in the face of such problems, we must carry out systematic examination, do not blindly repair, because the truck is a whole, any link problems, will cause the failure of different or similar.