aight so my car is over heating, the oil is at the correct level, i changed the thermostat(188deg) and the temp sensors, was working fine...then it started to over heat again, so i turned the defrosters on and had the fun turn on perminatly and yet again the car was working for and after about 30miles started to over heat again. I tested the old thermostat and it opend around 180-190, so the old thermostat is good

what could it be?

 

maybe the stat is opening and closing when it needs to..hows your radiator/coolant tank

 

everythings level, im ganna check the radiator again, and ive tried burping the system some air bubbles came out and that was that, also b4 all this started happening i had the water pump changed