I replaced a new radiator for Chery qq ,because old radiator is damaged by an accident. After that engine heat level is normal,but radiator coolant overflows after a run.I go to many garages,but anyone can't fix it.After that at one place ,radiator fan gives direct to car oil line.Now there is no overflowing, but radiator fan always working and heat level is very low.is that good?plz help