Nissan 27280-6FK7A Evaporator Assy-Front

1.Remove the expansion valve.2.Drain the cooling system and save the coolant if it is relatively new or in good condition.3.Move aside the lower dash insulation to access the heater core pipes.4.Disconnect the heater hoses from the pipes protruding through the firewall.5.Disconnect the refrigerant lines from the evaporator and plug all open fittings to prevent dirt and moisture entry.