Mitsubishi Repair: overheating, coolant temperature sensor, engine coolant temperature sensor

Question
I have an Eclipse 1995 2.0 GS standard, I been having a problem with boiling water that comes from the radiator to the plastic container,I had several mechanics look at it and last one told me it was the head.I got a overhaul done, and my car still have same boiling water issue. Change the thermostat 3 times water pump is good,radiator is only 6 months old. any idea on what the problem can be?

would it make any difference if the radiator is for a automatic and not for a standard car?

Answer
Dulce,
The radiator for the auto and standard tranny is the same.  The only difference is the auto radiator has ports that push coolant to the automatic transmission to cool that as well.  Boiling fluid can be a result of a clog in the cooling system, or even a faulty engine coolant temperature sensor.  If a sensor is falsely reporting the coolant is not warmed up, then the thermostat may never open or flow properly through the engine, and overheating can occur.  The overheating may not even be a result of the coolant, but with the oil circulation.  If the oil is not moving around the engine properly, that too can cause your engine to overheat.  Check with your mechanics and asked if they inspected your oil flow.  If not, have then take a look.
Good luck!