replace your radiator cap...
Try a new radiator cap.
hot or cold air
Can be the thermostat which is cheap to replace, or it might be the head gasket which is expensive.
Water under pressure has a higher boiling point, if the water is already hot enough to boil it will suddenly erupt when the cap is removed and pressure relieved.
Normal causes are low coolant and an inoperative radiator fan.Normal causes are low coolant and an inoperative radiator fan.
you need a new radiator cap
Low coolant, inoperative radiator fans, stuck thermostat, failed water pump, restricted radiator, head/headgasket.
when your engine is hot it causes the water to boil and the water and the anti freeze will come out of the overflow pipe.
It could be that the radiator cap is not able to maintain pressure. Check the radiator cap for cracks or any other damage. Replace if necessary. DO NOT remove the radiator cap when the engine is hot.
Lack of coolant, faulty thermostat, radiator fan not working...
It could be low on water and stuff, fill it.
Possible causes include an inoperative radiator fan and low freon levels.Possible causes include an inoperative radiator fan and low freon levels.
Engine overheated. Possible causes are: Thermostat stuck closed. Low of coolant. Defective radiator cap. Clogged radiator. Defective Water Pump.
Low coolant, plugged radiator, inoperative radiator fan, failed water pump, head gasket, thermostat.
The water will boil when the fluid gets hot. Steam in the fluid will causes a loss of hydraulic pressure.
when hot fat is dropped into water it causes the water it contacts to flash boil. the "explosion" you see is the steam trying to escape.
THAT MEANS THE RADIATOR IS GETTING HOT, Probably you mean Why isn't the radiator getting hot. could be becaused the thermostat isn't opening or the house to the radiator is disconnected or there is no coolant in the radiator,
engines create friction and that makes your coolant hot , the thermostat controlls the coolant temp , in the 195 deg, range . that is why its hot .
a bad termastat
Engine coolant temperature is cooled by the radiator, moved by a water pump and controlled by a thermostat. If there are troubles with any of those components the coolant will boil Also if the head gasket goes bad gasses from combustion inside the engine will get into the coolant and cause it to boil.
a hole in the radiator
You boil hot dogs for 7 minutes. Sometimes 10 minutes.
No, it does not matter whether or not the water is hot. You can put hot water in a pot but it won't boil any faster.