If your car’s radiator is leaking, the first step is to get it fixed.
In this guide, we’ll explain the basics of fixing a leak, how to replace it, and how to get the radiator back on the road.
If you’re unsure about the proper way to do the repair, check out our guide to fixing a radiator leak.
How to fix a radiator leaking article The radiator is an essential part of the car’s engine and it’s a leak-prone part of any vehicle.
If the radiator leaks, you’ll need to replace the entire radiator.
You’ll need a leak tester, which is essentially a pump that allows you to measure the pressure of the fluid leaking out of your radiator.
If there’s no leak in your radiator, there’s nothing to fix, and you’ll have to replace your radiator and its fluid.
If your radiator leaks and you’re worried about what to do about it, you may want to check out the following: How to diagnose a leak in a car The first step in fixing a leaking radiator is to identify the cause.
The first thing to look for is the fluid level.
To find the level, you can measure the fluid in the reservoir.
If it’s low, it’s probably a leak.
If that’s the case, you should look for fluid leaks in the engine bay.
If fluid leaks aren’t seen, then the radiator may be leaking as well.
Look for the presence of rust and corrosion in the radiator or the radiator itself.
You may have noticed that the radiator’s water line has a little corrosion around it, which indicates that the water line is leaking.
If a radiator leaks that doesn’t indicate corrosion, you’re probably in the clear.
However, it can be a good idea to check your radiator’s fluid level in order to determine if the radiator is a good candidate for replacing.
If this is the case with your radiator: Fill up the tank with enough water to fill your radiator with.
If possible, use a small bottle or bottle cap to fill the tank.
If not, use your finger to press down on the drain line.
This will allow the water to drain out of the radiator.
Check the drain.
If all of the water has drained out of it, it means that the pressure in the tank is low.
This means that there’s a lack of fluid in there.
The next step is checking for rust and corroding parts.
If rust is present in the water, you might need to remove it from the radiator by removing the cap.
If corrosion is present, you want to use a metal scraper or a wire brush to scrape the rust away.
If both of these methods are not effective, you have a leak or a damaged radiator.
Inspect the water in the drain for any signs of corrosion.
If any rust is visible, it suggests that the fluid is leaking too.
To test for corrosion, attach a wire scraper to a piece of metal in the sink.
Push the scraper into the drain, and watch as the scrapper falls into the water.
If no rust is seen, it indicates that there is no corrosion.
Check for rust.
If an area of rust is on the water or the waterline of the drain when you do this, there may be corrosion that has developed from the rust.
Check to see if there’s an oil seal on the radiator and if the oil seal is showing signs of wear.
If so, you need to check for oil seal wear.
Oil seal wear is a sign of a leak that may be causing damage to the radiator system.
If oil seal damage is visible on the oil line, the radiator can be damaged.
Check your radiator for rust to be sure that the oil is intact.
Check out our video on how to fix the leak in the car to learn more about how to diagnose and repair leaks.
If either of the above symptoms doesn’t appear to be a leak problem, the next step would be to replace all the fluid.
You can replace the radiator fluid directly by draining it out of a tank, or by using a small pipe and a wire-brush to clean out any excess fluid from the water tank.
Use a wire cutter to remove any remaining fluid from your radiator in the system.
Replace the radiator if it’s leaking in the first place, or if you’re concerned about corrosion in your car.
If two things happen to the water level and you don’t see any corrosion, it doesn’t mean the radiator isn’t leaking.
You might need a radiator-specific leak taster to find out if you have one.