Flushing a clogged vehicle radiator involves draining it, connecting it to a garden hose and forcing water through the pipes. The supplies you need to flush your radiator are an empty lidded container for the old anti-freeze, a piece of sturdy wire, a garden hose, clean rags, a glass jar and fresh anti-freeze. This procedure usually takes about an hour and must be performed on a cold radiator with the vehicle turned off.Know More
Place the anti-freeze receptacle beneath the radiator and set the radiator temperature control to its hottest setting. Remove the radiator's pressure cap and drain plug so that the anti-freeze drains into the container. If the coolant does not emerge on its own, insert the wire into the drain hole and wiggle it around. Fasten the lid and set the container aside.
Some radiators have drain taps. If yours has one, open it.
Disconnect both radiator hoses and insert a garden hose into the top hole. Stuff clean rags around the hose to keep it in place.
Replace the pressure cap and turn on the water. Keep the water flowing until clear fluid emerges from the radiator. Stick a clear glass jar into the liquid stream, collect a small sample and hold it up to the light. If the water is cloudy or contains suspended sediment, dump it out and keep flushing the radiator. Retest the water until it is clear.
Turn off the water and remove the garden hose. Reconnect both radiator hoses and fill the radiator with anti-freeze according to the vehicle manufacturer's instructions.
Take the container of old anti-freeze to a hazardous waste dump or ask your mechanic to dispose of it according to local laws.
Flush your vehicle's radiator by draining the coolant, refilling it with chemical flush product and water, starting the vehicle and bringing it to operating temperature, draining a second time, and refilling the radiator with an antifreeze mix. This job completes in the span of an afternoon.Full Answer >
To bleed a radiator, fill the radiator and the coolant reservoir with a mixture of water and antifreeze, and run the engine with the radiator cap off until the air in the radiator escapes. Finally, refill the radiator and the coolant reservoir to the top, and replace the radiator cap.Full Answer >
A person can determine if the radiator needs flushed out by checking the color of the coolant inside. This is done by loosening the drain valve.Full Answer >
To replace a radiator, remove the coolant, disconnect and remove the old radiator from the engine compartment. Install the new radiator, and fill it with coolant.Full Answer >