If your Daewoo Maltiz is overheating and the water container isn’t turning over with a screeching sound, it could indicate a timing belt issue, which can prevent the water pump from functioning properly. The screeching sound might be a result of the belt slipping or a seized pump. It’s essential to check the timing belt for wear or damage and ensure that the water pump is not obstructed or failing. If the timing belt is faulty, it should be replaced immediately to avoid further engine damage.