In any motor vehicle, coolant plays an essential role. When the engine heats up as you drive, or if temperatures outside are hot, then the coolant kicks in to keep those temperatures low under the hood.
It’s not just about preventing engine problems. It’s also a safety issue, which is why the DMV lists overheating as one of the most important car safety factors to monitor.
If your problem is coolant not circulating, then you need to identify and resolve that problem quickly. With that in mind, here are the main reasons why you might be having cooling issues, and what to do about it.
Cooling Not Circulating Due to Air Blockage
One of the most common reasons for a faulty air cooling system is when an air blockage prevents the proper circulation of the coolant. This can happen at any point in the cooling system, with air buildup stopping coolant from reaching the engine.
When this happens, your radiator and hoses coming in and out of it will stay cold. If the reason is an air blockage, you can usually fix it easily by opening the circuit to break the airlock and allow the air to travel around.
A Fault Thermostat
A faulty thermostat is a common culprit when it comes to coolant not circulating. The thermostat regulates the flow of coolant by opening and closing as needed, ensuring an even flow.
If it gets stuck in the closed position, it can block the coolant flow, causing overheating. To fix this, all you need to do is replace the thermostat with a new one and check that it runs smoothly.
Low coolant levels can impede proper circulation. Check the coolant reservoir and radiator to make sure you actually have an adequate amount of coolant in there.
If levels seem low, top it up with the recommended coolant mixture for your car. Be cautious not to mix different types of coolant, as this can lead to inefficient cooling and potential damage to the system.
Water Pump Failure
The water pump is responsible for circulating coolant throughout the engine. If it fails, coolant circulation can be compromised, leading to overheating.
Water pump failure might be the culprit if you hear unusual noises or see any visible corrosion. If you suspect a faulty water pump, it is advisable to replace it quickly at an auto mechanic to prevent further engine damage. For this, make sure to call a local, professional, and qualified auto repair service.
Over time, debris, sediment, and rust can accumulate in the radiator, restricting coolant flow. Regular radiator maintenance, such as flushing and cleaning, can prevent clogs.
If your radiator is severely clogged, consider professional cleaning or replacement through an auto repair shop. Additionally, make sure to inspect those radiator hoses for any blockages or leaks and replace them if necessary.
Drive Smarter and Safer in 2024
Car coolant not circulating can lead to safety issues, auto damage, and more costly driving. However, by identifying and addressing the problem quickly, you’ll be back on the road in no time.
For more expert tips on driving smart and safer in 2024, we have got you covered. Make sure to consult our dedicated Automobile info hub for all the tips you need.
Lisa Eclesworth is a notable and influential lifestyle writer. She is a mom of two and a successful homemaker. She loves to cook and create beautiful projects with her family. She writes informative and fun articles that her readers love and enjoy.