My 99carmy still overheats after replacing fans, sensors & thermostat. H2opump?

I've had my thermostat out for about2 weeks know. U don't think the cooling system already purged itself?

My in law says that i have the wrong thermostat cus there's on for cold weather n hot weather. But it should make a difference if i live n Florida. It seems to me something else is not working correctly?

OEM Thermostat is 180 degrees and that is what I used on mine and temp gauge stays dead in the middle like it should,it also has the jiggle pin. ALTERNATE Temperature thermostat is 170 degrees,and no,one is not for cold or hot weather,you don't flip back and forth from summer to winter,no matter if you're in Florida or Alaska. good luck with it.