How to Drain Radiator Coolant
The radiator holds the coolant that keeps the car from becoming too hot. To maintain the car, the radiator coolant should be drained and replaced with fresh fluids. You can use your owner’s manual to help you determine how often it should be replaced.
How to Drain Radiator Coolant
Materials Needed
- Ramps
- Gloves
- Water
- Antifreeze
- Allow the car to completely cool before draining the coolant. Serious burns can occur if you skip this step.
- Place the car on ramps so the car is elevated. Make sure the car is secured properly and the surface you are working on is flat.
- Look under the radiator from underneath the car to find the drain plug for the radiator. Place a drain pan underneath the drain plug to catch the liquids coming out. Make sure you wear gloves to protect your hands from the coolant.
- Pull on the drain plug. The coolant will begin to drain. Allow all of the coolant to drain. The coolant must be disposed of properly because it is harmful to the environment. Pour the liquid into bottles that can be sealed and take to your local waste management facility.
- Remove the cap from the top of the radiator. Allow the cap to remain off for about an hour to allow air to move through the radiator. Replace the drain plug. Fill the radiator with clean water and put the cap back on. Turn on the car and allow it to run for 10 minutes. Turn off the car and allow it to cool again.
- Repeat Steps 3-5. Continue these steps until the water is clean and clear. Once the water is clear, it is time to fill the radiator. The proper mix for the new coolant is 50 percent water and 50 percent antifreeze. Put the radiator cap back on.