Start all of a sudden it did'nt start

I have this ford contour 96,, i did'nt use it fir almost two yrs..now i'm using it well.. lot of maintenance before it work.....he works for almost two moths . then it overheat but i fix it the radiator hose in upper part need to be replace and its work and fine. one morning all of a suden it did'nt start it try it for few days it did not start but the engine crank....so i dont have a choice but to stock him....and after on weeki try to start it it work...i tried few time it work...it start for a few days..oh men one morning again it did not start but t crank.....and here he goes the problem..is it start for few days and after that it won't ...i hop you can help with my problem thanks..and one more thing the smell inside my car looks like coming from the hood..i don't know what it it but its smell like collant or refrigerant..