How do you change the radiator on a 2004 GMC Envoy?

To change the radiator on a 2004 GMC Envoy, start by disconnecting the negative battery cable and draining the coolant from the radiator. Remove any components obstructing the radiator, such as the fan shroud and hoses. Unscrew the mounting bolts securing the radiator and carefully lift it out. Install the new radiator by reversing the steps, ensuring all connections are secure, and refill the coolant before testing the system.