How to Flush Your Vehicle's Cooling System

How to Flush Your Vehicle's Cooling System

 

1. Park the vehicle in a safe place, away from children and small animals.

   Make sure that the engine is cold, the ignition is off, and the parking brake is on.

2. Place a bucket under the drain valve at the bottom of the radiator.

   The bucket should be able to hold at least two gallons of liquid.

3. Open the drain valve and allow the liquid to drain into the bucket.

   Don’t allow the liquid to drain onto the ground or into a storm drain or sewer.

4. Close the drain valve and pour the used liquid into containers with tight-fitting lids.

   Label them clearly as “antifreeze” or “coolant,” and place them away from kids and pets until you can dispose of them safely.

   A funnel and some old gallon water jugs do the job as long as you label them prominently and pour carefully to avoid spilling the liquid on the ground.

5. Open the radiator pressure cap and fill the radiator with water.

   Run the engine with the heater control on High for about ten minutes.

   Keep an eye on the temperature gauge to make sure that the engine doesn’t overheat. If your vehicle has an engine temperature warning light instead of a gauge, shut off the engine as soon as it lights up.

6. Shut off the engine and allow it to cool down.

   When the radiator is cool enough to touch, drain the water out of the system into the bucket again, and transfer it from there into a closed container for disposal. Label the containers toxic water to prevent accidents.

7. Close the drain plug and refill the system with water and coolant.

   Consult your owner’s manual, the back of the coolant jug, or the charts that coolant manufacturers supply to find out the number of quarts that your cooling system holds. Many coolants are now pre-diluted with water, but if you’re buying straight coolant, divide that number by two and buy that amount of coolant. Adding an equal amount of water to straight coolant gives you a 50/50 water/coolant mixture, which is fine for everything but extremely cold weather.

   The liquid should reach the “MAX” line on the coolant recovery reservoir or cover the fins in the radiator. If it doesn’t, continue to add equal parts water and coolant until it does.

8. Disperse the water and coolant evenly throughout the system.

   Replace the pressure cap and run the engine with the heater on High until the temperature gauge reads in the normal range.

9. Shut off the engine and clean.

   Place contaminated rags in sealable plastic bags and put them into the garbage, and store the unused coolant safely away from kids and pets.

10. After you’ve driven your car for a few days, check the liquid level in the recovery system reservoir again, adding equal parts water and coolant to the reservoir if the level is low.

    If it’s low again in a few more days, have the system checked at a service facility.

http://www.autozone.com/landing/page.jsp?name=flush-and-fill
http://www.dummies.com/how-to/content/how-to-flush-your-vehicles-cooling-system.html
http://www.youtube.com/watch?v=V7inC4lOpGs
http://www.youtube.com/watch?v=TlNJDy_bZDE
http://www.youtube.com/watch?v=ZvtUOaj2jAI

http://www.youtube.com/watch?v=mbyUHH5nwdE

 

 

상부 주입구 cap을 열어 놓고  하부 drain 을 열어 냉각수를 배출한다.

수돗물로 radiator 를 Flushing 한다.

하부 drain 을 막고 수돗물을 채워 넣고 시동을 걸어 온도를 높여 thermostat 를 열게 해서 물을 순환시킨다. 이때 heater를 최고로 올려 밸브를 완전 열어 놓는다. heater 관을 flushing 하기 위한 것이다.

다시 하부 drain을 열고 재차 수돗물을 flushing을 한다음 drain을 닫는다.

Flush the system with a radiator cleaner and water to remove stubborn rust and corrosive deposits. Use an inexpensive flush and fill kit to make the job easier.

<수돗물로 플러싱하기, 수도물 채워넣기, (라디에타 클리너를 넣고) 시동걸기, 배출하기, 엔진식히기 >  이렇게 3번 정도 한다음에

지정 coolant 를 물과 50% 씩 희석해서 주입한다. 시동을 걸어 회전 시키고 다시 더 체워 넣고 꼭 막아 둔다.

leakage가 있으면 sealant를 냉각수에 넣어서 시동을 걸어 회전 시켜 새는 곳이 막히는 것을 확인 한 다음 굳을 때 까지 차를 쉬어 준다.

 

또 다른 방법으로 상하 hose 를 열어 놓고 thermostat 를 분리해 낸 다음 engine쪽으로 수돗물을 넣어 플러싱하고, radiator쪽으로 수독물을 넣어 플러싱을 하면 될 것이다. 이때 클리너를 사용하여 내부 굳은 때를 제거 하도록 한다.

 

hanngill