K-Seal Expert Advice What is a coolant flush? Why they’re important and how to do them
Learn what a coolant flush is, why it matters, and how to do it to protect your engine from damage. Read our full guide to keep your car running.
Your vehicle’s engine runs hot, and without a properly functioning cooling system, it can overheat and suffer major damage. One essential maintenance task to keep your cooling system in top shape is a coolant flush. But what exactly is a coolant flush, why does it matter, and can you do it yourself?
In this guide, we’ll walk you through everything you need to know, from spotting signs that your coolant needs flushing to step-by-step instructions on how to get it done. Whether you’re a DIY enthusiast or considering professional help, this article will explore what you need.
A coolant flush, also known as a radiator flush, is the process of removing old, contaminated antifreeze (coolant) from your vehicle’s cooling system and replacing it with fresh coolant. This procedure not only gets rid of old fluid but can also clear out rust, scale deposits, and other debris that can accumulate in the system over time.
Coolant is crucial because it regulates your engine’s temperature and prevents it from overheating or freezing in extreme weather. Over time, coolant breaks down and becomes less effective, which is why flushing it consistently is needed.
Yes, as alluded to previously, coolant flushes are vital for the long-term health of your engine. Over time, the coolant degrades and becomes acidic, which can corrode internal components like the radiator, heater core, and water pump. A neglected cooling system may lead to:
Regular coolant flushes help avoid these issues and maintain efficient engine operation.
Wondering whether your car is due for a coolant flush? Keep an eye out for these common warning signs:
If you notice a sweet, syrupy odor whilst the engine is running or after you park, it could be leaking coolant. This is often a sign of a worn-out or contaminated system.
Gurgling or bubbling noises coming from the radiator or under the hood may indicate trapped air in the coolant system, often caused by blockages or low fluid levels.
If your temperature gauge frequently spikes or you notice steam coming from under the hood, your coolant may have deteriorated and become ineffective.
Consistently needing to top off your coolant could suggest internal leaks or inefficient fluid circulation.
Visible coolant leaks under your vehicle or around the radiator cap, hoses, or reservoir can indicate degraded coolant that’s compromising seals and gaskets. These leaks can often be fixed by using K-Seal.
If your car’s cabin heater isn’t blowing warm air, it might be due to a clogged heater core which is a problem often linked to neglected coolant.
You can opt to have a coolant flush performed professionally, which is often recommended if you’re not comfortable working under the hood. A professional flush typically includes a system pressure test and inspection of all cooling components. However, for the confident DIYer, a coolant flush is manageable with some care and the right tools.
Tools and supplies needed
Ensure to wear safety googles and protective gloves throughout the radiator flush process.
The cost of a coolant flush can vary depending on your vehicle and whether you go the DIY or professional route:
While professional services are quicker and include a full system check, DIY flushing offers savings and a satisfying sense of accomplishment if done properly.
Regular coolant flushes are a small investment in preventing major engine problems. Whether you take your car to a shop or do it yourself, staying on top of this maintenance task will keep your vehicle running cool and smooth for years to come.
Have any of these symptoms? K-Seal could save you thousands on a workshop repair. Search for a stockist today!
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