on most vehicles the radiator fan is wired up to a relay so that the fan will remain off until the car is warmed up. they do this so your car will warm up to NOT (normal operating temperture) faster. if you are good with wiring you could wire the fan up to a switch so you can turn it on or off when needed.
more than likely the head gasket
Radiator cap
A radiator cap would not cause a leak! However, if the radiator cap is holding pressure, other weak parts could signal issues in need of attention.
I would suspect a clog in the radiator.
radiator cap
A leaking radiator hose would NOT cause this to happen, you have 2 problems with this vehicle.
Check valve in radiator cap malfunction, replace radiator cap.
Because it would cause the universe to explode
They get old and become weak.
YES
No. The only times the radiator would leak is if it was damaged, defective, or corroded.
A very likely cause is a failed radiator fan.A very likely cause is a failed radiator fan.