I'm not really sure what you mean but if you need to drain it and the tap on the bottom is stuck, undo the clamp on the lower hose and drain it into a pan. If you meant the core is clogged, you are pretty much out of luck. Try an autoparts store for radiator cleaning solution or mix 50/50 water and CLR. Do not leave this mix in there long because antifreeze is what lubricates the water pump and you will eventually burn it up by running anything else but antifreeze.
Remove the serpentine belt. Drain the water from the radiator. Remove the radiator hose from the water pump. Remove the water pump retaining bolts. Reverse the process to install the new water pump.
Remove the bottom radiator hose. Put a garden hose into the top of the radiator. Allow the garden hose to run until the water coming out of the bottom of the radiator is clear.
Check your heater hoses, that's where the water ciruclates into the heater from the water pump.
radiator bluesWhen the water runs out of the radiator, it either means that the radiator is cracked, which means that its building steam inside your radiator. building the steam inside your radiator raises the temperature of your engine causing it to overheat and steam up on you.Depending upon where the water is coming from, the solution could be as simple as tightening or replacing the radiator cap, or tightening or replacing the drain plug,or tightening hose clamps. Check those things before proceeding.
a small tank to hold extra water from the radiator. A hose links the two together
no. instead use arm and hammer washing soda diluted with hot water
just take the shroud off to give you a little bit of room to work leave the radiator in
stuck thermostat or a air bubble in the system. Or the lower radiator hose is plugged or collapsed.
Water Jetting
When there is no water in the radiator, a car can overheat. Serious damage can occur like a blown head gasket an warping if one drives for a long time without placing water in the radiator.
You Don't .. You replace them
Water Jetting works best
try taking it apart and drying it on a radiator or television vent.D'ont dry the battery as it might cut the circut. Leave it for a few days without turning it on.
blown head gasket
Unclog the drain.
You should pour hot water down your drain. Hot water will open up your drain quickly. If you don't have hot water put some on the stove and unclog away, and this should work.
there is supposed to be water in the radiator. your radiator is supposed to be evenly mix 50/50 with radiator fluid and water, preferably distilled water.