Motor failure

I have a lincoln LS V6 2005 When I am circulating and it touches me bottling, let's say an hour of operation of the engine, the car begins to throw explosions and go out, I have to wait for the engine to cool and work again normally, they changed the gasoline pump and continues to do so. I have noticed that the engine is very hot, however the temperature indicator is normal, but not the engine, the heat is felt, I do not know if this has something to do with the aforementioned problem or the plane is the gasoline pressure regulator.

Any suggestion?

Check the igniction coil, the most logices that the fault is in that piece, according to the description of the fault.