No matter how big or small it is, every engine has a cooling system. Very early on in vehicle development, car engines were air-cooled. Essentially, exposure to the air passing over it dissipated the heat from the engine.
As engines became more complex and powerful, instances of overheating became more frequent,. An overheating engine is more than an inconvenience, it can be an expensive engine killer. It may even leave you on the side of the road then on to the repair shop for a serious repair bill. If your car has been running hot, you know the feeling.
Although hot weather is the most common cause of overheating , many other factors can cause the same problem. If your vehicle overheats in traffic in normal weather, one of the following may be the culprit: The water and coolant level in the radiator is low. This one is a little more complex because it could be any number of things.
The potential causes of a car overheating at highway speeds are a stuck thermostat, a restricted radiator, or a kinked hose. Check your fluid level first. If you want to test your thermostat before throwing it.
Your car is not overheating but it needs to be watched closely. I know this because I have. Most modern cars have a plastic reservoir of coolant connected to the top of the radiator.