Toyota overbearing 2700 warm air is not hot.

Generally, we should pay attention to check whether there is any loss of coolant, and pay attention to the circulation state of coolant, because some cars have insufficient temperature controllers, which will cause poor circulation of coolant. The third is that the blades of the water pump are not corroded, which will cause poor circulation of coolant. The fourth problem is the blockage of the heater box. Therefore, first check the coolant level without loss, and then drive for more than 10 minutes to see if the temperature of the sewer pipe is consistent. If not, there is something wrong with the thermostat. Then, check whether the air inlet pipe and air outlet pipe of the warm air are upward. If it is rising, there is something wrong with the pump. If not, it is that the heater tank is blocked.