it depends on the car
vales verga!
If the car is not getting any fuel, it will not run.
If stuck open the car will run cold. If stuck closed the car will run hot.
well yeah absolutely
Yes
The engine won't run.
It would only run as long as the battery had a sufficient charge.
engine will stall out and run very bad.
Bad bushings or bad pilot berring.
A bad fuel cap can make your check engine light go on. It shouldn't cause your car to run rough or die.
It sure can. In some cases your car will not run at all. Normally bad gas just means it is contaminated with moisture. A tiny amount of moisture and your engine will miss and run rough.