Tag Archives: overheating

Why do I need a coolant flush?

This is what clean coolant looks like. Coolant is a 50-50 mixture of antifreeze and water.

Question: My owner’s manual shows that I’m due for a coolant flush at 90,000 miles. What does coolant do? And do I really need a coolant flush?  Answer: A coolant flush or cooling system flush is modern-day terminology for ridding your radiator of rust, dirt, sludge and old antifreeze or “radiator fluid.” The fluid is more accurately known as coolant, which is a 50-50 mix of antifreeze and water. And yes, flushing the cooling system is an important part of your car’s preventive maintenance schedule. Why? Because coolant keeps your engine from overheating—which keeps you from sitting by the side … Continue reading

Overheated coolant triggers “check engine” light

Your car’s “Check Engine” or “Service Engine Soon” light can flash on for more than 1,400 different reasons, and in the coming months, we’re going to share with you what some of those reasons are. The light is part of your vehicle’s on-board diagnostics (OBD) system and can indicate anything from a quick fix like a loose gas cap to a major repair like a catalytic converter. Trouble code: P0217 Engine Over Temperature If this code is discovered, it means the engine coolant temperature is excessively high under normal engine speed. The engine coolant is overheating if it’s around 240 … Continue reading

Cooling system flush prevents overheating, engine damage

Question: My owner’s manual suggests getting cooling system flushes performed on my car, but it’s running fine. Do I really need this done? Answer: Your engine cooling system helps keep your engine from overheating, which is one of the most common causes of breakdowns and internal engine damage. A cooling system flush is basic maintenance that every car owner should be aware of. Every time you drive, your radiator uses coolant to help lower the temperatures in your vehicle’s engine. Coolant, which is a 50-50 mix of water and antifreeze, flows through your car’s radiator, water pump and engine cooling … Continue reading