The radiator is one of those parts of your car that works quietly away without you every noticing…until it breaks, and then you really notice. This reservoir holds water and antifreeze to help keep your engine in tip-top condition. Engines create a ton of heat when they operate (and friction, but that's a whole other issue), and that heat can quickly destroy them unless it's cooled down. Enter the radiator, which draw heat away from your engine and protects your car from other temperature-related problems, like freezing during an especially cold night freeze.
However, radiators don't run perfectly forever. Their contents can grow old and contaminated, which leads to problems. This is where radiator flushing can prove especially helpful.
What is a Radiator Flush?
Antifreeze, engine coolant, and all related liquids run in constant cycles through an enclosed system, so they can last a long time. However, constant exposure to your engine does take its toll. Over time, coolants grow contaminated with other particles and stop working as well, eventually endangering your engine with overheating and corrosion issues.
A coolant flush simply cleans out your radiator system and replaces all your coolant with a new version. Generally it takes place in several steps. The old coolant is completely pumped out, a cleaner is pumped into the system to help clean it up, and then new coolant is added.
What are the Benefits of a Coolant Flush?
Go too long without a radiator flush, and your engine could destroy itself from the inside out, overheating and causing that dreadful scenario where you are stranded by the side of the road with smoke or steam pouring out of your hood. But there's a lot of other pertinent benefits too, including:
System Inspection: During a coolant flush, your auto mechanic will probably inspect your cooling system for any problems, like microscopic leaks, that you may not have noticed. This can help save you a lot of trouble down the line.
Freeze Protection: A flush before winter can protect your engine from freezing, especially if you have older antifreeze or have developed antifreeze leak that you don't know about.
Overheating Protection: Similarly, replacing your coolant, especially before the hottest months, can help you prevent overheating before it even becomes an issue.
Reduced Thermal Stresses: Old coolant can increase the thermal stress that your engine endures, which usually happens at several different points where heat is concentrated. These areas of the engine are the first to get damaged by heat, but can be protected by encouraging uniform temperatures with free-flowing, new coolant.
Improved Cabin Heating: Your car heater draws a lot of its heat from the radiator to help maximize efficiency. The better your radiator is working, the more quickly and efficiently your car's heater will work on cold mornings.
Removing Rust, Scale, and Other Problems: The inside of your radiator is not always a pretty place. Over time rust can become a problem and scale from mineral deposits can build up. A flush helps remove the problem.
Lubricating the Water Pump: Your engine isn't the only thing that needs lubrication – your water pump needs it too. Flushing typically includes new lubrication for your pump.
How Often Should I Get a Cooling System Flush?
It can depend, so your owner's manual will have the most accurate information on when you should get a flush. For most cars, it's around 50,000 miles because it takes time for your coolant and antifreeze to develop problems, but they are affected by temperatures and driving habits as well as time, so some people may benefit from getting a flush more frequently.
Let Ace Auto Repair Handle Your Cooling System with a Radiator Flush
Take your car into Ace Auto Repair for a coolant flush, and you will get the ASE certified treatment that you deserve. Our technicians can offer free repair quotes for any problems that they encounter, and use mobile diagnostic testing for quick results. All work guaranteed with us, so take a visit to our website and see how you can schedule a coolant flush.
Ace Auto Repair is the best place anyone could and should go for service repairs and oil changes. During the oil change, they also checked other little things at no additional charge and offered to change my back wiper blade and air filter at no added cost, except the parts, which were inexpensive. I declined but they said they would do them anytime. Great place to leave my suv for an hour or two and come back to a nice running, worry-free oil change. Great guys work here and have great customer service. Thanks Ace!
We have trusted Ace for years. They are honest, do excellent work, never pressure us but recommend service to keep our car running well. Zach and Jake give personal customer service that you don’t find in a huge shop. We highly recommend them.
At first I got a diagnosis for repairs, had AC leak, bad shocks and tires needed to be replaced plus oil change.
Zach (hope I spell the name correctly) took the car in, at first I was afraid of what other repairs would be required.
The car did not do so well on the AC and had to go back to the shop. Zach saw my frustration as the car belongs to my daughter and of course we were not in a good position to spend more money. Ace worked with us up to the end and we’re very understanding about everything and our frustration and got my daughter’s car back on the road and helped us all the way. Very Glad we took the vehicle to you. I only met Zach but I am sure more people are to thank here. Thanks for everything again
These guys are awesome! They did my transmission fluid the RIGHT way and for a fraction of the price that the steal-ership wanted to do just a flush. The guys are very informative, honest, upfront and super knowledgeable as well. All things that are hard to find with a mechanic shop, unfortunately. They easily earned a lifelong customer. 👍
Can't recommend these guys enough. I've been having them work on two different cars I've owned over the past couple years, and they have always been kind, patient, fair, and helpful. I've even had a dealership give me a free rundown of a car I bought there, then I called Ace to get their second opinion, and they were kind enough to translate all the mechanic gibberish to normal English for me as they gave me their second opinions on the initial assessment. I'm moving out of state soon, but these guys will be changing my oil and doing inspections and repairs anytime I'm back visiting Utah.
They replaced the A/C compressor and the rear brakes and rotors. The price was fair, the work was quick, and the craftsmanship was excellent. I will use them again
These guys were great! I called them Saturday morning with squealing brakes, and they were able to take care of the brakes and rotors same day at a very reasonable cost. Zach kept me informed along the way, and the entire experience was smooth without any drama. I highly recommend them!
Brought my car in for a mass airflow sensor issue that I've been fighting with for two years. The folks at Ace knew exactly what the problem was, were able to get it fixed the same day, and it hasn't been an issue since.
They also made sure to recommend the least expensive option first to help prevent us from overpaying for the solution.
I've taken my cars to Ace on several occasions now and have been highly impressed with their skill and professionalism.
Had my teenage daughter’s car repaired back in February 2026. We needed the alternator replaced and various other repairs done. We were informed with what the cost would be and other recommendations. It was great that they were open on Saturday. Their work was exceptional. We would recommend Ace Auto to anyone needing an honest and reliable company for your car repairs and maintenance.
I've had my van in a couple times. They're honest about what needs to be done and what doesn't. I've had several times other shops quoted me very high repair costs then come here and had them tell me it either didn't need to be done or actually needed a different repair that wouldn't be as expensive
They do a full inspection every time I come in and let me know everything they did. Extremely organized with everything they do.
This shop exceeded my expectations. They fixed all my concerns and got it back to me running perfectly. If you want high-quality work without the runaround, this is the place to go!
Zack and everyone at Ace were very professional and helpful! My car threw a code that the turbo was bad! I was facing about a 2000 repair! Ace checked it, found that it was my spark plugs needed to be replaced/ tune up! Save me over 1000 dollars! Like I said in a prior review they are very honest and dont try to take advantage of you! I recommend them highly to everyone I know!... thanks again for your professionalism! . They are our auto repair shop! Thank you!
Completed job when they said they would. Very fair in pricing. Took time to let me know what was exactly going on. Made great recommendations to keep my vehicle safe to operate. Genuinely caring staff. Me and my family are truly great full.
I called & they fit me right in on a Saturday. Zak was friendly, very knowledgeable, listens to my concerns, very professional & I had a totally different experience w/him vs the company I had just taken my vehicle to for just a oil change that caused the problem your company had to fix. I will definitely come back & send others as well.
I really trust these guys!! They are Honest! I have taken all my cars here, wouldn't trust anyone else!! Honest, reliable people are hard to come by, I wouldn't go anywhere else!!!
The guys at Ace Auto are awesome. They went over the entire estimate with me line by line and what the repair entailed. They had my car fixed quickly. When the check engine light came back on a week later they had me bring it in the same day and I had it back that night. They were quick and fairly priced. Would definitely recommend taking your vehicle to them.
I will definitely take my car to Ace if it needs repairs. I feel they were honest and fair and didn't feel at anytime that because I was a woman I was taken advantage of. They also repaired my granddaughters car.
They were friendly and gave good explanations of things needing to be fixed and the order of the need to fix them. This was helpful since I was not in a position to fix them all then. The repairs were done quickly and I was given updates as needed. Would recommend.
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