Will coolant be lost when replacing the thermostat?
1 Answers
Coolant will be lost when replacing the thermostat. During the replacement process, the coolant must first be drained from the engine, which results in some loss. Additionally, the coolant may come into contact with impurities when removing the thermostat. Therefore, it is generally recommended to replace the coolant when changing the thermostat. Method for replacing coolant: Before completely replacing the coolant, conduct a thorough inspection to check for any leaks or cracks in the pipelines, with a particular focus on the five-way water pipe. The five-way pipe is named for its five connections to different parts of the vehicle, and the coolant flows through it to be distributed to various sections of the car. If there are any signs of coolant leakage in this area, replace the hose or reseal the connections as needed. Drain the old coolant and flush the liquid channels with clean water. Add water to the coolant reservoir and continue filling until clean water flows continuously through the engine cooling system. Then, idle the engine for 3 to 5 minutes to circulate the water. Initially, the water draining from the reservoir may appear slightly pink. Continue adding clean water until clear water flows out. Remember to disconnect the heater hose and drain the water from the heater core. After about an hour of draining, add the new coolant through the radiator hose to allow it to flow quickly into the radiator. Then, fill the coolant reservoir with another batch of coolant until it is nearly full. Start the engine and let it run for about 10 minutes. As some air is expelled from the cooling system, the coolant level will drop. Top it up to the "MAXT" mark on the reservoir.
