All sorts of thing can.. Low oil, low coolant, blocked radiator, stuck thermostat, running too lean on fuel... If it just suddenly started to do it and the levels are ok then check the thermostat.
No it can not. If the belt is missing that could cause it to run hot.
Yes.
Yes
Yes but it will cool down
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
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
yes it will make bring unmetered oxygen in and the o2 sensors will pick it up and it will run lean (lean=hot) (rich=cool)
yes but i would start with the thermstat that will cause the car to ouer heat also Yes.
If stuck open the car will run cold. If stuck closed the car will run hot.
I think you would know if you needed a freeze out plug for you would be losing coolant & losing coolant would make your ride run hot.
Low anti-freeze makes a car run hot going 70 mph.