Just an additional note guys as it may be relevant. before my original pump died my radiator fan packed up and the car started overheating, well the resistor or something(to switch it between high and low). my old garage said it had dies as the relay was located inside the fan and was to switch between high and low modes.
ANYWAY to remedy this they instead mounted a new resistor in the engine bay, on the chassis with a wire going into the radiator fan and this fixed my overheating problem. However i think this is something to do with the problems im now having with the pump but god nows how to it can be fixed!!!!!!????