i got 2007 model corolla axio fielder 1.5 auto there is one strange issue with its radiator it throws water out from the reserve bottle ,i fill it up after every three four days there is no heating problem with car even on ac, fan works as well. few friends suggested following solutions but i am not sure what to do.
1. replace radiator cap
2. take out the thermostat valve
3. replace the head gaskit
i am not sure what to do if any one can help me out that would be really nice.