At one point in the history of automobiles, air cooling was a standard feature. In order to address this issue, all engines have a cooling system. Since engines generate a lot of heat, there must be a system to disperse this heat adequately otherwise, it can permanently damage the engine components.

Here’s a closer look at how an engine cooling system works and what each part does. The cooling system consists of several separate parts, all of which work together to keep the engine running cool and optimized. How an Engine Cooling System WorksĪn engine cooling system is a vital part of any vehicle, as it helps to keep the engine running smoothly and at its best. To better understand the coolant reservoir tank and its cap, let’s examine a vehicle’s cooling system and how the reservoir tank functions. This coolant is essential as the engine constantly flushes and absorbs the coolant as it cools down. The coolant reservoir is a plastic tank located in the engine bay and holds coolant. Most people don’t think about this small component until something goes wrong. A missing or faulty coolant reservoir cap can cause problems in the cooling system, leading to expensive repairs.ĭespite its seemingly simple appearance, your coolant reservoir cap is essential to your vehicle’s overall cooling chain. The reservoir supplies coolant to the engine, and the lid prevents spills and leaks. A damaged or missing cap can be one of the causes of the coolant level dropping, which can lead to overheating.Ī coolant reservoir cap is an important part of the cooling system. If your car is overheating and you’re not sure why, you might be missing a coolant reservoir cap. Conclusion Is a Coolant Reservoir Cap Important?

Coolant reservoir cap missing