You can. It may not do as much good as you're expecting, and you could have a time trying to fit the second one in.
That is for the air can flow through the radiator and cool the engine coolant down.
You don't. Wait for the engine to cool down to avoid getting burned before you open radiator cap.
Either a faulty engine temperature sensor or the wiring to it.
When the engine heats up to a certain temperature, the thermostat opens up and lets the coolant flow through the engine. Heat from the engine is absorbed by the coolant, which then cycles back to the radiator. Heat from the coolant is exchanged to the air which flows through the radiator fins, thus causing the coolant to rapidly cool down.
The best way to cool down an overheated car engine is to park the vehicle. Allowing the engine to cool down naturally avoids all potential hazards and it is also safer for the engine. If you must start the cooling process immediately, pour cool water over the radiator and upper and lower hoses.
When your car is at idle there is no air flow to cool the radiator, but when your car moves the air flow through the radiator cools it down. I would suspect the radiator fan is not coming on when it should. If the fan is working properly the engine temperature should stay fairly constant assuming the thermostat is also working properly.
usually after the car has had a chance to cool down, the hose should be "spongey" when it is grasped, but after attaining operating temperature, the hose should become firm as the cooling system presurizes up. it will remain so, again, until the engine/cooling system cools down. Dont ever open the radiator cap when the engine has been run to operating temperature or not had a chance to cool down adequately, the pressurized system is very hot and you risk serious injury!!!
A car's radiator is used to help keep the engine cool. During operation, an engine's moving parts create friction, which produces heat. Coolant flows through the engine picking up that head and travels back to the radiator where it is cooled down by air flowing through the radiator coils. The cool coolant then travels back through the engine completing the cycle over and over.
nothing wrong, it just stays on to help cool the radiator down.
a radiator is used to cool down the engine using a liquid, whereas an intercooler is used to cool the air going to the engine or cooling the air comming from a turbo. What that does is that there will be more air particles in a defined volume of space if the air is cold, compared to hot air in the same volume of space. This is due to air contracting in cold temperatures. The result is more air going to the engine and therefore more generating more power.
In your car, the radiator transfers its heat to the surroundings - the air. [Strictly, this is conduction, but don't quibble. This is mechanic talk.] In your room, the radiator does radiate heat into the room.
It depends on the style cap you have but, in all cases wait for the engine to cool down (cool to the touch) then push down and turn counterclockwise at the same time. Some caps do not require you to push down.