Not a switch, but you could have a problem with the Sentry Key System. The key has a chip in it that communicates with a receiver near the ignition switch. You will have to go to a dealer for service.
No but, if you leave a plug wire disconnected and not grounded while running the engine, you can damage the ignition module.
It is not required for proper running of the engine.
Its not your engine. Its the fan running to cool the engine down. They all do it and nothing is wrong with your car.
No, but it can cause severe engine damage if you keep running the engine.
no, ususally if the belt breaks, no other damage results.
It sounds like your dizzy cap isn't lined right which causes the engine to stay running after the ignition has been switched off. i had the same problem with my fiesta
If the check engine light is flashing when the engine is running , that indicates that an ignition misfire has been detected
Sounds like the engine heats and the ignition fails.
Yes, putting petrol/gasoline in a diesel engine and running it will cause severe damage to the engine.
subaru legacy engine is switched off when stop after drive
Engine running rich. Get this fixed ASAP and do not drive until you do. Serious damage will occur to the engine. If you have electronic fuel ignition and you pump your gas pedal before starting, this can add un-burned fuel to your engine oil.
Sounds like you are loesing the live for the radio when the engine is running cheak the ignition barrel is ok Just an idea Oliver