97 Lumina Coolant change

How do I change the coolant in my lumina, I'm not sure where to find the radiator to empty it, the directions on the bottle say empty the radiator of coolant, I think, and then put water in it, run it again for 15 minutes, and then empty it again and fill it, is this right, I know nothing about cars. Thanks.

---Mike

Get a big drainpan first! Coolant isn't something you want to just dump into the environment. Usually there's a plug near the lower end of the radiator, driver's side, that unscrews. If you don't have one, then you have to unclamp the lower hose. Either way you do it, be sure the radiator cap is off, and rinse out the recovery tank (big plastic bottle in the corner). You can buy a specific flush for radiators, but if you cange the coolant on time you won't need it. After you drain the stuff out of the radiator, drain it out of the block and rinse. I do it the haynes manual way: remove the upper radiator hose (pass. side) and stick a hose in the water pump inlet. Let it flush the system until the water coming from the lower hose is clear, then let it all drain. Reconnect all hoses and drain plugs, then add the correct ratio of coolant. Bleed the system, and you're good to go.

Emphasis on bleed the system. An air block will cause all kinds of rapid overheat problems.