You also need to note Subaru’s feature to install 3 poles fans on radiators. While repairing 2.0 Impreza buy only high quality accessories. For 2003 model year cars and 2.0 motor with code EJ207 producer stands strict rules for it. If cooling vent in Subaru Impreza is broken, better replace it at once.
You can’t provide normal engine temperature in 2003 Subaru Impreza with wrong fan. The nominal work of vent in Subaru Impreza is to lower temperature of coolant.