Is It Time for a Cooling System Flush?

September 11, 2014

 How a Radiator Flush Can Prevent Engine Overheating

You bring your vehicle to your local automotive repair shop, and the technician tells you that your car needs a cooling system flush. Why do you need to flush your cooling system? And is performing a radiator flush really that important to the performance of your vehicle?

Let’s take a step back to talk about the cooling system in your car. The cooling system, which includes your radiator, holds a water and antifreeze mixture called permanent coolant/antifreeze to help your engine maintain proper temperature and provide heat and defrost functions. The mixture prevents your vehicle from overheating in the summer—which can be common—and prevents the engine from freezing during the winter. The amount of permanent coolant required varies depending on your vehicle’s unique make and model.

Cooling systems require flushing from time to time because the by-products produced during normal wear and tear of the system and the decay of the chemical mix in the permanent coolant can dirty the system with impurities and rust. These particles can block the system and prevent the radiator from performing the way the engine requires. It may also reduce the amount of heat available to heat the cabin and defrost the windows. By flushing and servicing the cooling system, you will help extend the life of your vehicle and prevent costly breakdowns and repairs. A radiator flush involves pushing a mixture of water, cleaner, and new antifreeze through the system to remove any contaminants and old antifreeze.


Signs Your Vehicle Needs a Radiator Flush

  • Your high-temperature gauge is reading higher than normal.
  • You hear a grinding or knocking sound coming from the engine.
  • You smell a sweet odor—sometimes compared to maple syrup—from under the hood.
  • You notice signs of a coolant leak.
  • You haven’t had a cooling system flush in 2-3 years.

Many manufacturers recommend flushes every 40,000 to 60,000 miles or as often as every other year. However, if you have noticed any of the signs above, we recommend bringing your vehicle to your local Rad Air as soon as possible for a cooling system inspection. Make sure you view our current specials before you schedule your cooling system flush.

If your vehicle is showing any of the above signs, take your car into the nearest Rad Air today for a Cleveland radiator repair service.

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