hey guys so i just jumpstarted my car (cuz i left the lights on...otherwise the car's been running great recently) it was after that that i noticed i was overheating (like almost in the red) i checked out the radiator while it was still running and the fan wasn't running. is it supposed to turn on while the car is running or just once the engine is turned off? it looks like everything else works (no leaks or anything) but i havent checked out the thermostat or anything like that cuz i dont really know anything about how those work...womp womp... anybody got an idea of where to begin looking for the problem? oh also the temp gauge rises mostly when im idling but once i drive around a bit it tends to go down a little bit but not very much