How do you change the thermostat on a 1998 Chevy Malibu 6 cylinder 3100 M for someone who doesn't know a lot about cars?

Drain about 1 gallon of coolant from radiator Follow upper radiator hose to engine-should connect to a housing that is secured by 2 bolts Remove housing and make note how thermostat is installed Clean both surfaces completely Install new thermostat and gasket Tighten housing bolts evenly and securely Re-fill radiator Start vehicle and check for leaks Run to Normal operating temperature with heater on Re-check coolant level