How to Repair a Heater Hose

Have you ever seen someone stuck on the side of the road with steam billowing out of the hood? Most cases, this is because their vehicle has blown a heater hose. The steam comes from the vehicle coolant that leaks out of the hose and is frying on top of the hot engine. This issue looks worse than it really is. Simply, let the engine cool down by lifting the hood all the way open and gather your tools.

Instructions

1

After the engine cools down, remove the radiator cap. Put it aside because you will need to replace it after you are done.

2

Check all hoses for leaks. They are located throughout the engine. Check both radiator hoses (upper and lower) and all heater hoses.

3

When you find the bad hose, cut the bad part out. You will not need to use the coupling if the leak is on the water pump or heater core. In this case, after you cut off the bad piece with your knife, re-clamp it to the proper fitting.

4

Put your coupling on the hose, if the leak is in the middle of the hose. If it will not slide on well, use a little coolant to lubricate it. Place the coupling on both ends tightly and clamp them into place. Make sure they are on good or you will have to start over. Tighten the clamps but be careful with the rest of the hose. You do not want to puncture any more of it. Add coolant or a little water to get it to the nearest store to buy some coolant and a new hose for your vehicle. Do not drive far.

5

Take your vehicle to a service center as soon as possible for proper replacement if you are not comfortable with replacing the hose yourself.