schapman

My radiator fan wont turn off and its running full blast. Ive never heard it fun so loud. its turn on before the temp gauge even reaches full temp. it turns on around 1/2 between full cold and normal high temp. Its 30 degrees in Texas now and the hole time i was driving you can hear the fan running and it won turn off. What do I need to check to get this fixed?

Nuke

One of these relays may be the culprit. You'll have to troubleshoot.
http://iihs.net/fsm/?dir=40&viewfile=Cooling Fan.pdf