A car’s thermostat regulates the flow of coolant through the engine and is an essential part in the operation of your vehicle. In most cases, an overheating or no-heat condition in your vehicle is due ...

CARS.COM — A car thermostat is responsible for preventing your engine from overheating. Unless an engine overheats or fails to reach normal operating temperature after being driven for several miles, ...

When a car’s heat is working, it can feel glorious on a cold day—thawing you out so efficiently that you might have to take your coat off to keep from overheating. (Just make sure you don’t do that ...