yesterday i was driving and the heat all of sudden left wat should i do to fix this problem wat i need to check

 

check to see your heater control valve, if the wire that pushed it on and off came off the little rod. The HCV is located at the firewall in the middle, and it has 2 coolant lines running to it. also to check the flow of your heater core, you can hook up a water hose to one of those lines and see if it shoots out the other hose.

Also, is your slider that goes from cold to hot really easy to move now?