Using your owner's manual or your eyeballs, locate your radiator's drain plug. It could be anywhere along the bottom of the radiator, and will be either a screw plug, bolt plug or a petcock (simple drain valve). Be sure you have your used coolant receptacle in place under the drain before you open it up. Look at the bottom of the radiator facing the engine. I there is none then pull off the lower hose.
Assuming you are looking for the radiator drain valve, you will find it on the passenger side of the radiator, under the lower radiator hose.
radiator drain valve is located at the bottom of the radiator, there is an access hole through splash guard.
find your heater hoses and follow them. the flush is usually in an easily accessible location. It is very possible there is not a radiator flush valve. you may need to install one.
It is just below the lower radiator hose.
Don't know off hand but you could always pull the lower radiator hose and drain it that way.
Disconnect lower radiator hose if you can not find the drain valve. Drain water and antifreeze and flush it out good. Reconnect hose back up. Then add a gallon and 1/3 of anti freeze then finish with water.
In most vehicles, you will find the drain valve at the bottom of the radiator. Look on the bottom of the radiator on the driver's side of the truck. It is a small plastic hand operated twist nut.
You will find that it is located on the bottom of the radiator. If you do not find a drain Petcock on the bottom of the radiator you must remove the lower radiator hose in order to drain the radiator.
Search for a drain petcock along the lower edge of the radiator tanks. Loosen the valve with a pliers, but DO NOT OVERTIGHETEN IT. Not all radiators have one. If you can't find one, then you will have to remove the lower radiator hose which will drain most of the coolant from the engine block too.
the radiator drain plug is located on the bottom of the radiator,on the radiator
Never flush a radiator. When flusing the radiator theres no way to be 100% sure that you got everything out, and flushing a radiator will only losen things up that can get into the engine, clogging it up causing you BIG problems... Its okay to drain and refill the radiator, but never flush one. All of those deposits that's getting lose, some will come out but what doesnt will find its way into your engine, causing you a huge headache.
In order to flush the radiator on my 1996 Safari I had to remove the radiator fan cover under the hood (there are 6 bolts holding it in place). You will find a plug on the bottom of the radiator that has to be unscrewed and the old water will drain. I ususally put a hose in the cap and let the engine run (with the heater on) to flush out all the old fluid. Then re-plug the radiator, re-install the fan cover and re-fill with fresh fluid.