Hello partner, if the engine expelled the water through the radiator or the expansion boat, it is due to strong overheating.
The overheating can come for several causes:
1st Broken thermostat, so that the water of the cylinder head does not go to the radiator and begins to boil, take pressure and jump the radiator cap.
2nd fan drive and the warehouse pump, broken or out of place, if the pump does not rotate, the water does not move and the result is the same.
3rd in city driving, rupture of the \ "viscous link \" of the cooling fan (Fan Cluch). In this case, as soon as the vehicle could circulate faster, the temperature would drop immediately.
4th burned butt joint. If the engine has lost water due to some leak, or breakdown and has heated strongly, it is possible that the Culatt Board (Head Gasket) has burned, when this occurs, the compressed gases of the cylinders escape to the oil crankcase and also to the water cameras located in the butt, producing the same effect as if there were water vapor in the cooling circuit, the gases move the water and therefore the water Motor does not refrigerate, heated even more and the problem increases to the point of breaking the engine.
Another thing, do you mention that you have been with problems for the motor start time, one question: did you change the battery because the starter engine turned slowly? or on the contrary, it turned at a normal speed but the engine did not turn on?
If the start turned at a reasonable speed and the engine took to turn on, or turned on three cylinders or headed, it is a clear symptom that there is very little compression in the engine and that the butt joint is burned.
With whatever you let me know. All the best.
All the best.