Edit to add: Carver beat me to it - must have been typing at the same time!
Get yourself a drain pan - a clean one. Place it directly under the coolant tube under the car. Remove the 1/2" diameter drain plug located near the rear of the tube just ahead of the bend where it connects to the hose. Once the plug is removed, remove the fill cap on the engine. Let it drain. Be sure to use a large enough drain pan so it does not over flow or use 2 or 3 or whatever it takes. Once the system is drained, remove the 2 clamps, pull the hose, inspect and replace.
Or: you can go old school and just pull the hose with the bucket underneath. Of course this method will most likely give you a little coolant shower but it's quick. Also remember that the drain plugs have probably been in there for 20 plus years so use care when removing it. I believe that it takes an allen wrench. Be sure that the allen wrench you are using fits tight into the plug. You do not want to round it out.
Once you have the hose replaced and the drain plug back in, transfer the old coolant (if it's still good) to a jug or bucket that you can use to pour it back into the fill tube on the motor. Before you start to fill, jack up the back of the car so that the fill tube is higher than the radiator cap up front. Open your radiator cap up front and fill slowly checking the level in the radiator up front. When the coolant starts to come out of the radiator fill neck, close the radiator cap and then go back and finish filling the system. Once the system is full, replace the fill cap and start the car. let it run for a few minutes. If you let it get warmed up, the system will be under pressure. Go to the radiator and slowly turn the cap till it relaeases the pressure into the overflow tank. With the pressure off, tighten the radiator cap, go to the back and open the fill cap on the motor. add coolant. Do this several time until you can not add any more coolant. Put your tstat back in and close the cap. Run the car and take note of the temp. If it looks to be running hotter than normal, repeat the "burping" process.
Someone may have an easier way to burp the system but this is how I do it and usually after the second tme around it is done and I never touch it. Good Luck!
Happy New Year!
Pat
[This message has been edited by katatak (edited 12-30-2008).]