The cooling system of your vehicle is critical to the performance of your engine, and if you start to develop rust in your radiator, then your car can start overheating and cause damage to the vehicle. To get rid of the problem, you need to do a coolant flush, which will get all of the rust out of the radiator.
Let the vehicle sit for several hours before starting the process. You need to be able to place your flat palm on top of the radiator for at least 10 seconds without having to pull away from heat.
Open the radiator cap and place a bucket underneath the draincock on the bottom of the radiator. Open the draincock and let all of the coolant drain out of the radiator.
Tighten the draincock and fill the radiator with the coolant flush system, then with water.
Run the vehicle for 10 minutes with the heater on high, once the vehicle has reached normal operating temperature. This will circulate the coolant flush throughout the system and let it remove all of the rust.
Turn off the engine and allow it to cool for at least an hour. Again, you need to able to put your palm on the radiator for 10 seconds.
Open the radiator cap and place a bucket underneath the draincock on the bottom of the radiator. Open the draincock and let all of the coolant drain out of the radiator. Once the fluid has drained, tighten the draincock again.
Fill the radiator with water from the hose and repeat Steps 4-5.
Open the radiator cap and place a bucket underneath the draincock on the bottom of the radiator. Open the draincock and let all of the water drain out of the radiator. Once the fluid has drained, tighten the draincock again.
Fill the radiator with a 50-50 mix of coolant and distilled water. Run the vehicle for about 20 minutes to allow the coolant and distilled water to mix together properly.
