Radiator Keeps Pushing Water Out (Causes & Fixes)

A car has different requirements from you, and one of the most important things is surely the water! However, when putting water into the radiator, you may notice severe difficulties one of them being the fact that the radiator keeps pushing water out!

So, why does the radiator of your car is pushing the water out? What can you do in order to fix it?

To find the answers to the two questions listed above, keep reading this article till the end!

Key Takeaways


  • Radiators pushing the water out is one of the most common things a car owner can go through and it happens because of different reasons.
  • Corrosion in the inner parts of the radiator is one of the main reasons that lead to this issue.
  • Other reasons include radiator caps, thermostats, hoses, and gaskets.
  • You should definitely have in mind that talking to a mechanic is the better thing to do.
  • Important: Don’t drive when you notice water being pushed out of the radiator as it can lead to bigger issues with your car.

Why Does the Radiator Keep Pushing Water Out?

Leakage is one of the most frightening things for a car lover, and the water coming out is surely something you want to find out more about and fix it as soon as possible.

The reasons that the radiator keeps pushing the water out are a few in number including corrosion as the most important thing, a broken gasket, the hoses, the radiator cap, and the thermostat!

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Corrosion

Corrosion is something that happens when the iron has contact with water and air, and your car’s radiator can quickly undergo corrosion, especially in its inner part.

So, if you try to put water into the car’s radiator and you notice that the water comes out even though it is needed, there may be corrosion inside that doesn’t accept it.

Broken Gasket

The gasket of a radiator is the part in your car that mounts the cooling system and the whole radiator in general. If the gasket isn’t in its proper form, water won’t enter your car, plus you may have different difficulties with leakage while driving.

Worn-Out Hoses

The hoses are basically the main parts of the radiator that transmit the water into the whole engine. If they are worn out, which can happen because of many reasons, you will see water coming out the moment you try to fill the radiator.

Bad Cap

The most basic reason why the radiator of your car may push the water out is because of the radiator’s cap!

If the cap isn’t put properly or if it doesn’t fit as it used to, there is no doubt that water will come out and it will come out all the time.

Bad Thermostat

The thermostat of the radiator always controls the coolant that goes in and out of the radiator. That being said, when you notice that the water is coming out, it can be a result of a completely broken thermostat that doesn’t control anything around.

How to Stop Water from Being Pushed Out? – Common Fixes

After a list of reasons why the radiator in your car pushes the water out, I want to share with you the ways how you can fix it, and whether you can do it yourself or you need a mechanic.

Putting the Proper Amount

If the problem stands on the fact that you don’t put the proper amount of water in the radiator, instead you want to fill it as much as you can, it is a mistake you do!

Dealing with Corrosion

As corrosion was one of the most important reasons why you would have problems with water being pushed out of the radiator, to be honest with you there is no simple way on dealing with it.

The perfect thing to do is to go to a mechanic and let them do the job, as you alone cannot achieve the results you want.

It may need a full replacement or just to get rid of the parts that are undergoing corrosion.

Change the Cap

A bad cap in a radiator was one of the simplest reasons why you would deal with water coming out and the best way to deal with it is to completely replace the cap with a new one.

If you want to do it yourself, make sure to choose the right number as they all come with specifications regarding measurements and sizes overall.

Change the Hoses

Once again, if the problem stands with the hoses that transmit the water into your engine, make sure to change them.

I wouldn’t advise you to change them yourself as they are a little bit trickier than the cap, because you have to do the proper adjustments. Going to a mechanic would be the best choice.

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Replace the Thermostat

Depending on what car you own, the problem with the thermostat isn’t the easiest one to choose, so it is definitely a mechanic’s job.

By the way, if you own a sports car or a more luxurious one, you should know that thermostats are a little bit more expensive.

Can I Drive if the Radiator Pushes the Water Out?

Driving with a not-so-perfect radiator isn’t something that hasn’t been done and many people mention the fact that they have been driving with a leaking radiator everywhere.

However, my advice would be to never do that! Never drive when you notice that the car’s radiator is pushing the water out as it can lead to different issues with your car, overheating being the main one.

Also Read: Is It Bad to Floor Your Car?

Final Words

Everything I mentioned above is to help you get informed on why the radiator in your car may bring out water and it is one of the most common things that can happen, so the first word would be to not panic!

The article is all written with informational purposes and if you are not sure what to do, basically the best thing is to get in touch with a professional mechanic.

Anyways, I hope you liked what you read thus far and solve the issues with your car’s radiator!