chelsea

Hi everyone. I have a ford galaxy 2.3i 1999 model. Now sometimes my car starts normally for around about two weeks and then for a few days it wont start. The start motor turns and battery is fine but i have this flashing red light in the drivers door. Then if i leave the car for two hours it starts fine again and then I can drive it for a few days and then it will start again, flashing light in the door and the car wont start and then a couple of hours later it will start again. But now it is becoming more frequent. Another problem is that i can be driving my car and it will just die and when i go to turn the engine it has no power, only the dashboard lights, nothing from the engine and then a few hours later it will just start as normal. I would be very grateful for any help.