To change the radiator you should, Do not make direct contact with the cooling system if the temperature exceeds 100°F (38°C), dress appropriately, gloves, glasses. Start by opening a drain cock on the engine's radiator and allowing to drain into a sealed receptacle. Third, it is required to disconnect both the upper and lower hoses that are associated with the automobile's radiator. If the vehicle has an automatic transaxle, another pan should be placed underneath the ATF cooling lines, then the transaxle cooling lines should be disconnected and the transaxle, as well as the radiator fittings should be drained while plugged. Disconnect the harnesses for the radiator cooling fans, next, remove the upper radiator support brackets and cushion assemblies. Very gently raise the upper portion of the radiator Hood with OBD and then take out the bolts holding the cooling Fans to the radiator. For installation reverse of above procedures and open the bleed valve on the thermostat housing half turn and set the heater to full hot position, consequently fill the cooling system with the distilled water and coolant mix ( half-half) and remove the air from the radiator hoses by squeezing. Turn off the bleed valve whenever the threading of the coolant is bright and consistent. With a radiator cap placed half on and half off start the vehicle and let the engine to run until the cooling fan comes on two times, then shut off the vehicle and fill the radiator and the overflow tank with water and coolant, respectively as necessary. Last but not the least, shut the radiator cap, rev the car motor and look out for the leakage.