Compadre the problem is in the cuisine empiesa by checking the thermostate it can be stuck, otherwise look at the exhaust if you see agüa steam, take out the spark plugs and see if any is with oxide, the oxide occurs by the iron the oxyne and moisture, in the combustion camera it should not have moisture, when you realize that some spark plug comes out, and with the symptoms of your Vehicle takes the cylinder head to do a pressure test, rectifies surface replaces the packing (joint) of butts and weapon the engine does not scare yourself so much is not a serious problem but if and I have a lot of eye with the torque because if you give it a bad torque after a while I will bolver to fail, I hope it serves you something anyway I am 90% sure that it is the packing (joint).