What are some tips for changing a car thermostat?

Tips for changing a car thermostat include moving the car to a level spot and allowing it to cool completely. Drain the coolant completely. When you remove the original thermostat, push a clean shop towel into the open space to keep the cooling system clean.

Spray lubricant can make it easier to remove tight hoses and housings when exposing and removing the thermostat. Before taking out the original thermostat, it is helpful to take a photo for reference. For the new part to function correctly, install it in the same position. After reassembling the cooling system, replace the coolant and run the engine for a few minutes to check for leaks and verify that the temperature gauge functions correctly.