What’s going on when the Sagitar water temperature reaches 90 and the heater temperature drops?

Pacific Automotive Network The temperature is low in winter. If you turn on the heater before the engine reaches normal temperature, the heat of the engine will be quickly consumed by the heater, and the heat generated by the engine at this time is not enough to offset the engine temperature. The heat consumed by the heater will cause the water temperature to drop when the heater is turned on. In the final analysis, there are two points. One is that the heat generated by the engine is low, and the other is that the temperature is too low. This is normal and there is no need to worry about it.

The problem you mentioned is very normal. Many small-displacement models will have this problem in the cold winter. There are two main reasons for this situation. One is that the engine displacement is small and the engine is running. Less heat is generated, so the engine heats up more slowly.

The other is that the temperature is low in winter. If you turn on the heater before the engine reaches normal temperature, the heat of the engine will be quickly consumed by the heater, and the heat generated by the engine at this time is not enough to offset it. The heat consumed by turning on the heater will cause the water temperature to drop when the heater is turned on. In the final analysis, the choice comes down to two points. One is that the heat generated by the engine is low, and the other is that the temperature is too low. This is normal and there is nothing to worry about.

Turning on the warm air will reduce the temperature of part of the coolant circulation, which is equivalent to increasing the heat dissipation performance, so the entire water temperature will drop. The water temperature of the engine is mainly dissipated through the front-end water tank and the fan through the oncoming wind. This cycle is a small cycle. If the warm air is turned on, it is equivalent to increasing the heat dissipation area of ​​the water tank in disguise, and the heat exchanged increases, so the water temperature will naturally drop.

(Pictures/Text/Photos: Pacific Automotive Network Question and Answer Calling the Beast)