Where is the Car Thermostat Located?

1 Answers
VonAlexander
07/25/25 5:36am
The car thermostat is installed at the upper water outlet of the engine. The thermostat must maintain good technical condition; otherwise, it will severely affect the normal operation of the engine. If the main valve of the thermostat opens too late, it will cause the engine to overheat. If the main valve opens too early, the engine's warm-up time will be too short, resulting in the engine temperature being too low. Related information: The thermostat automatically adjusts the amount of water entering the radiator based on the coolant temperature to ensure the engine operates within the appropriate temperature range, which can help save energy. This is because the engine consumes more fuel at low temperatures and can cause significant damage to the vehicle, including the formation of carbon deposits and a series of related issues. Under normal circumstances, when the engine starts cold, the operating temperature is very low. To allow the temperature to rise quickly, the thermostat controls the flow (with the main valve closed), directing the coolant from the pump into the water distribution pipe, bypassing the radiator—this is known as the small circulation. When the coolant temperature reaches 87 degrees, the thermostat valve opens, and the coolant begins to flow through the radiator and the cooling system. Generally, about five minutes after a cold start, the coolant temperature should reach the normal range of 85-105 degrees. If it takes a long time to reach the normal operating temperature or the temperature rises rapidly beyond 110 degrees, it may indicate a thermostat malfunction.
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