Select Page

The hose of engine radiator is prone to aging and rupture after long-term use. When encountering this phenomenon, it is recommended that people change radiator hose in time. If you know how to do it, you won’t need to call someone else to fix our car for you. This will help you save up to hundreds of dollars.

8 Steps teach you how to radiator hoses replacement:

Step 1:Check hoses and clamps

Locate the two hoses that carry the coolant between the radiator and the engine. One is on top of the radiator and the other is on the bottom of the radiator. Squeeze each hose, it should be flexible and elastic. If it feels soft, or very hard and brittle, it needs to be replaced.

Look for signs of expansion or rupture, especially at the vulnerable bottom of the hose. Check that clamps hold hoses securely in place and are not corroded. If the fixtures are corroded, they need to be replaced.

Step2: prepare tools

A radiator hose, screwdriver, antifreeze, etc. You can buy some of the materials you need from your local auto shop. Make sure you buy the same type of radiator hose as your car. If in doubt, ask someone at an auto shop for help.

Step 3: Determine whether the engine and radiator are cold. Drain coolant from the radiator.

Before you start driving your car, make sure your car engine is turned off. The location of the leak was determined by measuring the location of the wet area on the ground. Let the engine cool for at least half an hour. While you’re waiting for the car to cool down, place the bucket over the leak.

Step 4: Remove the old hose

When the car is cold enough, you can change the hose. Take the screwdriver and release the hose. In some cars, radiator hoses do not pull out easily. To do so, you may need to disconnect it. Be careful when doing this. Install new radiator hose. Obtain the radiator clamp and connect it to the new hose. If you have trouble connecting, use WD-40 and spray it on the end of the hose you need to connect. Tighten the hose and hose clamp. Then, fill the radiator with half a mixture of water and antifreeze.

Step 5: Confirm replacement

Get new hoses and compare them to the removed hoses to make sure they are the right length and diameter. If the old hose is a molded hose, the new hose must also have the same prefabricated curve.

Step 6:Modify the hose

Apply some sealant to the inside of the new hose fitting, then place the loose clamp on the end of the hose and slide the new hose into place on the engine block and radiator fitting. Firmly tighten the clamp about a quarter inch or 6mm from the end of the hose. Be careful not to over-tighten and damage the hose. But importantly, when the pressure in the cooling system builds up, they don’t fall off.

Step 7 :Dispose of waste

Use a funnel to refill the cooling system, then run the engine for a few minutes. Check hose connections to make sure there are no leaks. Double check the tightness of the fixture when the engine is at normal operating temperature, as both the fixture and the hose expand at different rates when heated.

Step 8: Test radiator hose

Turn on the engine and keep it running. Close the radiator cap while doing this. Let it run until the engine warms up. Check the radiator hose under the car for any further leaks. Then, put on the radiator cap. You have successfully replaced the radiator hose.

radiator hose
radiator hose

In addition to the basic steps mentioned above, here is more in-depth information on replacing radiator hoses:

Step 1: Choose the Right Radiator Hose
Before you can replace your radiator hose, you need to choose the proper hose. Different cars use different kinds of hoses, so you need to make sure that the hoses you buy match the model and year of your car. Also, the size and shape of the hose is important, making sure the new hose is exactly the same size and shape as the old hose will ensure the hose is installed and connected correctly.

Step 2: Check other parts
Before replacing the radiator hose, it is recommended to check other related components, such as radiator, water pump, temperature sensor, etc. If there is a problem with these parts, it can also cause problems with the cooling system. If there is a problem, it needs to be repaired or replaced in time.

Step 3: Dispose of Old Coolant
When replacing the radiator hoses, it is necessary to drain the coolant from the cooling system. Old coolant may contain corrosive substances and needs to be disposed of properly. The old coolant can be poured into a special trash can and then disposed of by a professional organization.

Step 4: Correct fastening method
When replacing radiator hoses, you need to make sure the hose connections are properly tightened. If the hose connection is not tight enough, it could cause leaks or other problems. It is recommended that you use the manufacturer’s recommended torque values to ensure that hose connections are properly tightened.

Step 5: Choose the Right Coolant
Before you can replace your radiator hoses, you need to select the proper coolant. Different cars use different types of coolant, so make sure you buy the right coolant for your car’s make and year. In addition, the type and brand of coolant are also important, and it is recommended to use the coolant recommended by the manufacturer.

Radiator hoses replacement is a relatively simple repair job, but making sure each step is done properly can avoid problems. Before replacing the radiator hose, you need to prepare the corresponding tools and materials, and make sure to choose the appropriate hose and coolant. In addition, before replacing the radiator hose, it is recommended to check other related components, such as radiator, water pump, temperature sensor, etc.

Special attention should be paid to the radiator[1] is hot, when replacing must pay attention to safety.


[1]raditor:The explanation of the radiator concept comes from Wikipedia