My car is overheating at idle and at high speed.1 Fan not running.

What is your question?

The car fan is not running and the air has stopped working. the car also overheats at idle and high speed.upper manifold crack it was so hot no loss of fluid before it cracked. replaced manifold and car still runs hot. What is wrong? Oil is clear and coolant was good so please help. I need to get rid of this car.