How to Flush ATV Radiator: 5 Step Guideline

Vehicles require periodic maintenance to keep them running. Most of these maintenance jobs are small and straightforward. If left unsupervised for a lengthy period of time, though. This may necessitate extensive and costly repairs.

Cleaning your car’s radiator is one of these jobs. A radiator is the source of electricity for your vehicle’s cooling system. Liquid coolant is poured into different engine components to protect the engine from overheating.

So, how to flush ATV radiator?

You must first locate the radiator. The radiator must then be allowed to drain. Close the valve after cleaning the radiator. Then you must replace the coolant when it has been refreshed. Turn the key and let it run until the temperature reaches typical operating levels.

These are all the basic steps of flushing the ATV radiator. I’ll explain every step in detail below.

How to Flush ATV Radiator?

ATV Radiator Flushing

In addition, distilled water should be poured via the radiator. “Flushing” the radiator occurs when additional antifreeze is added.

If you skip this step, you risk clogging your cooling system. And, ultimately, an overworked engine.

Learn how to properly flush a radiator by following this step-by-step instruction:

Step 1: Find the Radiator

First, you have to check for a flattened, finned metal region. Whenever you lift the hood, look just in front of your automobile. This is where you’ll find the radiator.

Look for a metal cap with a spherical shape that connects to the radiator. It could be labeled as “radiator coolant” or something like that. Because you’ll be adding fluids to it later, you’ll have to know where the cap is.

Step 2: Radiator Drainage

Search for a valve or a big rubber hose beneath the car. Place the drain pan directly beneath the line clamp or valve. Then open the valve or release the clamp.

Allow at least 10 minutes for the radiator to drain. Or until just a steady dribble of antifreeze remains.

Step 3: Radiator Flushing

Re-tighten the clamp and replace the hose. Lock it in position or shut the coolant drain valve assuming your car has one.

Disconnect the fuel system and pour distilled water into the radiator until it is totally full. After reinstalling the cap, start the car and then let it operate for 10 to 15 minutes.

As a result of this, water will be pumped into the engine. Any corrosion or loose particles. All of the old coolants should be drained out as well. Restart the valve or reconnect the hose after closing the car. Draining the radiator of all filtered water and debris into a drain pan.

Close the valve or tighten the clamp after that. Then, with the drain pan full, move it out of the path.

Step 4: Refresh the Coolant

To find out how often coolant your radiator requires, consult your owner’s handbook. Place the funnel in the intake of the radiator cover you found previously. Refill the radiators with a catalytic mixture of coolant and purified water at a 50/50 ratio.

You might also use a which was before motor coolant that doesn’t require dilution. However, compared to antifreeze concentration, this is often more costly.

Check for coolant in the overflow tank and top it off as necessary until the level reaches the service line. The surplus tank is constructed of plastic and is connected to the radiator by a thin flexible cable. After starting and driving the automobile for a few minutes, look for leaks.

Step 5: Refill Coolant

Turn off the engine and add some additional antifreeze and water. Fill the tank with filtered water and a little additional antifreeze after unlocking the excess tank lid. You should aim to stop a few inches underneath the service area, and then you’re done.

There are various qualities of an ATV radiator. I’ve put up a list of great ATV radiators. These are of good quality and at in reasonable price. Click Here to check on Amazon.

I hope this information aids you in selecting an appropriate ATV radiator! 

These are all the required steps for flushing ATV radiator. But you may not get your expected results from only these steps. There are some factors discussed below that you should know for flushing ATV radiator operations.

Things to Remember While Flushing ATV Radiator

Place a pan beneath the ATV water pump to collect the coolant

Beside the oil fill line is the coolant tank. It’s a white tank with fluid visible inside. Remove the cap from the coolant tank. There’s a front cap, an interior cap, and a rubber gasket. Take out all three.

Place a pan beneath the water pump to collect the drippings. Remember to rid of this fluid appropriately at a recycling facility. Keep it away from animals’ reach and also don’t keep it in your yard.

Reinstall the bolts and refill the radiator using water. To drain the water, remove the bolts once again. Repeat until the water in the radiator has been evacuated and is clear.

Make sure the antifreeze isn’t accessible to youngsters or pets. Although it has a nice taste, automobile antifreeze is extremely hazardous. Bring the old antifreeze to a dangerous waste disposal site.

It should be taken to an auto shop or an atv flushing automotive parts store for safe disposal. Put the old coolant and the fresh antifreeze in identical plastic containers.

In the atv coolant tank, place a funnel and put your coolant solution into it. The right level to pour will be indicated by lines on the tank’s side. When you’re done filling the tank, reattach all caps as well as the rubber gasket.


Can I use vinegar to flush my radiator?

Yes, you can. Pure white vinegar can be used. Alternatively, a 50/50 solution of filtered water and white vinegar. Allow for at minimum one night of soak time, or longer if you do have the time. A couple of days should be enough. Before washing the thermometer with distilled water, let the liquid drain.

Can you use dish soap to flush the radiator?

No, you can’t. Dish soap should never be used to cleanse the coolant system. Whatever soap in the mechanism might begin to eat away. The engine blocks, resulting in a catastrophic collapse.

How do you clear a clogged radiator?

By releasing the discharge valve on the bottom of the radiator, you may drain the coolant. Next, open the blocked drain to drain the coolant from your cylinder block. Allow the car to run after installing the bought radiator flush. Your automobile will be fresh and clean in no time if you drain it like old coolant.


I hope that now you know all about how to flush ATV radiator. I have discussed all the required steps of the process for your convenience.

If the problems continue, you may have a defective radiator or water pump on your hands. Realizing the coolant level is very low. Then don’t go for a ride since it will nearly always result in issues. Or, if the problem persists after troubleshooting, get expert help.

Best of luck in resolving the issue!


Leave a Reply

Your email address will not be published. Required fields are marked *