How To Fix A Leaking Car Radiator- Quick And Easy Steps

A car is a machine and it is likely that it can break down at any moment. A leaking radiator can contribute to the break-down of a car if not attended immediately. Sometimes a leaky radiator is visible but many-a-times before we understand, the leakage leads to a complete breakdown of the car.

A radiator is fundamental to the engine’s temperature control system. There are tubes that carry the coolant to the radiator, but sometimes the whole system messes up and leads to a damaged radiator. If the leakage is not detected early, it can lead to the vehicle break-down. Here in this article, we will tell you how to fix a leaking car radiator. But first, you need to know how to detect a leaking radiator.Scroll down and find out the signs.

How To Detect A Leaking Radiator?

1. When the coolant is discharging frequently, it will lead to an overheated engine. If your engine heats up frequently, know that your radiator might have some issues with cooling.

How to check leaks in radiators.
Video credit: Dantheman92

2.When the coolant level drops, you need to add more coolant to keep the radiator working. If the coolant level drops drastically it indicates a leaking radiator. A coolant is basically a liquid that flows in the radiator to keep the engine temperature normal. Therefore any changes in the temperature of the engine might be an issue with the radiator.

3. There can be a discoloration or corrosion in the radiator. Clean the engine and you will be able to see if there is any discoloration on the underside of the radiator. Abnormal discharges can cause this discoloration.

4. When you park your car, after a while you will notice a bright green, slimy-looking liquid is oozing out from the vehicle, it is a sure indication of the leakage in your car radiator. It is very harmful to animals and humans as well. Clean it as soon as possible and fix your engine.

How Much Does It Cost To Fix A Coolant Leakage?

Detection is better than fixing. If your radiator hose is damaged or a blown head gasket, call the mechanic. It is not always possible but if you have already reached the cause of the issue, repair it immediately. A head gasket itself will cost around $90-100. But if your radiator is damaged, it will cost you around $400. Generally, total repairing costs around $500 depending on the situation your engine is in. Don’t wait, rush to the mechanic.

But if you are interested in doing the work yourself, we will help you do it. You can save around $500-600. A few puddles of green might seem innocuous, but it can be the real problem-maker. Therefore it needs treatment immediately. Below we have mentioned a few easy steps to fix the leaking car radiator.

How To Fix A Coolant Leak- Steps

There are various ways to fix a coolant leak, but these are temporary fixes to help you on the go. You need to replace the damaged parts either by a mechanic or if you are capable of doing it, you can do it at your home. We would recommend you a professional solution if you are an experimental amateur.

Use Epoxy

Primarily, you need to identify the cracked art and clean the area. When you discover the crack, you will see the area is most probably covered with grease. Do you have a break cleaner? Good, use it to clean the cracked area. Any grease or diet will not allow Epoxy to sit properly and in turn generate the issues again. Open the epoxy and knead it properly to soften it because if you don’t, you won’t be able to use it. Make it malleable and always take a generous amount of epoxy to seal the crack. The thickness has to withstand the pressure of the coolant system when it’s working. You need to provide at least a night for the epoxy to sit properly before you can use the vehicle.

Learn step by step:

You can easily get epoxy from a vehicle store and always keep it handy in case you face a situation like this.

How to repair radiator using epoxy
Video credit:
JamieJones TheCarMan

Use Commercial Leak Sealant

These leak sealants are found in every vehicle store. This is basically a liquid Sealant. You need to turn off the car and let the engine cool down. Open the radiator cap and slowly pour down the leak sealant into the cooling system. Replace the radiator cap and then start the engine, but before this, you need to put some coolant along with water if your engine is currently low. After you start your engine, the liquid Sealant will flow through the cooling system and repair the leak on its way. Run the engine for a few minutes and then let the leak sealant sit overnight. This is not a permanent solution, you will have to take permanent repairing measures in order to save your car. This is how to fix a coolant leak easily.

DIY Repair

These two processes can be experimental but aren’t trustworthy or permanent. It can help you for a short period of time, maybe someplace where you don’t find a mechanic. But as soon as you find a garage, get it done because egg yolk or pepper can damage your system permanently. Use these methods only during an emergency.

Use Egg Yolk

Take about 4-5 eggs and separate the whites from the yolk. Open the radiator cap and pour the egg yolk through the coolant system. Start the engine for a few minutes and let it settle. This will help you seal small cracks until you get to a garage to have a repair done.

Repair car radiator using yolk
Video credit: thekback

Use Pepper

Like a sealant or the egg yolk, pour the pepper about half a shaker. It will travel through the coolant system. And help to seal the cracks temporarily. Proper is a better solution than egg yolk. But again, these are not pregnant solutions. Get your car repaired immediately.

Take regular care of your engine’s health to avoid any such issues.