How is the engine idling temperature rising?

Generally speaking, the cooling water temperature can reach the normal temperature of 85~ 105 degrees about five minutes after the cold car starts. If the high water temperature warning light of the car lights up or the temperature rises linearly over 1 10 degrees, it can be confirmed that there is a high temperature fault.

Idle speed is generally in the state of parking or low speed, the air around the engine flows slowly or statically, and the engine's heat dissipation function is definitely poor, which is also the reason why idle speed is easy to rise. However, as a cooling system in good condition, it is not enough to let the water temperature rise to the alarm level.

There is a water pump in the cooling water channel of the car to force the cooling water to circulate. In addition, there is a thermostat, which is responsible for small or large circulation of cooling water. During the small cycle, the cooling water does not pass through the radiator, so the temperature rises quickly. When the car just started, because the water temperature did not reach the set value of the thermostat, the thermostat made the cooling water circulate a little, and the water temperature rose rapidly, reaching the temperature of 80-90 degrees Celsius suitable for the engine to work. Professional solutions for car selection, car use, sales and service in Jin Run, Hunan. If my answer helps, please accept it. Thank you!