9 times out of 10 its low on antifreeze/coolant. either from leaking internally or externally.
could be a weak or bad water pump
clogged radiator
or any of hundreds of other causes for overheating
If stuck open the car will run cold. If stuck closed the car will run hot.
No it can not. If the belt is missing that could cause it to run hot.
Low anti-freeze makes a car run hot going 70 mph.
That depends on what the car is supposed to run at.
Yes.
Yes
there is something wrong with your car. It's not supposed to run and its not supposed to be hot at the same time. Maybe its running for a fashion contest
no a bad fuel pump will not make your run hot it will cause it not run like it should and eventually stop running at all
Generally when the engine is hot or the AC is on.
If the fan does not run, that is probably why it overheats.
Usually the rad is not providing enough cooling and the extra heat provided by the a/c working can make it run hot.
definetly and run hot very hot when it gets hot immediately turn your car off or you will throw a rod or blow the motor up