Generally, the cause is a thermostat that is stuck open. A good way to test is to turn the heater control to off for a few minutes, then turn on and see if you have heat. If you do, you need a new thermostat.
it can cause to fire and
No, a bad crankshaft sensor would cause the car not to start and run.
well it could be because of the heat. if its cold out and you have the heat on in the car, then you will get hot and that will cause the window to fog.
No.
Yes
Using it to much.
well it depends on what car you are driving but if it is like a ferrari it will eventually
the thermostat stuck shut. will cause the car to over heat at ant temp!
Not quite sure of everything, but driving it in the heat for a long period of time could cause it to overheat.
The expansion of the heat from the combustion of the fuel drives the pistons.
#1 cause Heat, #2 Heat, #3 Heat, #4 Sulfation usually caused by electrolyte loss because of heat.
Yes. Yes.