The Workings of the Radiator

The spring season brings to mind warmer temps, car rides, and bumpy roads. Many people get ready for the spring by performing their general car maintenance or their vehicle safety inspection. One thing that people become concerned with is the coolant levels. Coolants are considered one of the top fluids to check after engine oil. When car owners check their radiators, they look for leaks and check fluid levels, but not really understanding the purpose of the radiator. Radiators are important to keep the engine cool, especially in the spring when the coolant has been through torture over the winter months.

How Does it Work?

The radiator is essentially a network of tubing that travel through the engine block to carry coolants that absorb the heat from the engine. When the liquid is cycled away from the engine, it is cooled by the outside air and is then cycled back to the engine to repeat the process. The radiator pulls antifreeze from the reservoir down through tubes that run through the engine. As the liquid travels, it is heated by the energy generated inside. The hot fluid travels through a network of tubes, which is the radiator that is located in the front of the car where it is exposed to receive the maximum amount of airflow. 

How to Care for the Radiator

If you properly maintain your radiator, it can last for up to ten years, and an older metal one can last for the life of the car.  If you have a newer car, you may have a radiator that is made from lightweight aluminum or even plastic. Make sure that you inspect it for cracks that form from expanding and contracting with the temperature changes. If your car is overheating, a leak may be the culprit. You should also make sure you have the proper level of antifreeze. Make sure you have appropriate safety gear and exercise caution. When you take off the radiator cap, proceed slowly because the system is pressurized and fast removal can cause a rapid escape of steam and can cause burns. You should also check the hoses, clamps, and thermostat to make sure they are in good condition. Replace any worn, corroded, or damaged parts. Your mechanic will drain and refill the antifreeze if the liquid becomes contaminated.

What is Radiator Flushing?

Radiator flushing has been touted by many auto repair shops, causing a great amount of controversy over the process. Flushing involves pumping the antifreeze under pressure through the radiator in this process. This is done to ensure that all traces of the old fluid and contaminants are removed and to lubricate the water pump. Many mechanics feel that flushing a radiator is not needed and is not worth the trouble or expense. Radiators in newer cars are smaller and are situated at an angle in the front of the car in a very tight position, which makes reaching the radiator a tough job. The design of the radiator makes it almost impossible to remove all of the sediments that may have settled to the bottom or in the crevices. The design also makes it hard to insert any power-washing tool inside. Your mechanic can advise you as to whether you need the radiator flushed.