How do you replace Chevy venture ac evaporator core?

To replace the AC evaporator core in a Chevy Venture, start by disconnecting the battery and removing the dashboard to access the HVAC unit. Then, drain the refrigerant and remove the necessary components, including the blower motor and any ductwork. Once you can access the evaporator core, unbolt and remove it, then install the new core and reassemble everything in reverse order. Finally, recharge the AC system with refrigerant and test it for proper operation.