It works too late Chevy radiator fan

I have this problem with my dad's car I hope you can help, the following happens:
My Pope has a Chevy Mod.2004 Motor 1.6L Automatic Transmission, with climate. The problem is that the radiator motorcyclemer enters almost three quarters of the temperature indicator on the board, the two motorcyclentilers were thorough Half of the indicator, I thought it was the bulb (the one that goes down the acceleration body) and nothing remains the same if someone can thank me a lot. Thank you.

Friend check if the thermostat is opening at the temperature ... Easy is the cause of your problem ... Change the thermostat and tell us as it went .... Greetings ... Jorge.

Hello friend you must check the state of the electrventilator relief and if this is bad to place an original because if it is not the same does not work properly I hope the information serves you

What the first apprentice comment poses 23 is true the problem must be sought in the thermostat and also in the water pump:
I am a mechanical technician and I had a very similar case with a 2004 Chevy
it happens that the PCM when detects 98 degrees trigger the low velveter speed (needle at 3/4 Dereloj, 2-3 stripe obstructed, or defective pump then dripping the early one up to 103 feet, 3/4 clock (seen with a scanner) then the PCM shoots and maintains the high velocity of the fan also that makes an unusual noise
. HIGH Clock 3/4 And when checking he had a minimum leakage through the water pump which towards the car would overheat the engine at more than 105 degrees
replace the pump and the car was well and did not return

Hello friend, look if in the refrigerant reposition glass, some air bubbles arise every time if so, it is going to compression to the water through the unta of the lid or fissure in the lid, the engine does not fail but heat