Because he does
Faulty ignition switch.
A malfunctioning the ignition switch will allow the car to keep running after the key is turned off. You can remove the positive ground cable from the battery to shut the car off.
Its not your engine. Its the fan running to cool the engine down. They all do it and nothing is wrong with your car.
Probably a bad key switch.
The key has to be turned to the "Run" position, but the engine should not be running. The key has to be on to power up the ECU.
The blower motor will operate when the key is in run regardless of whether the motor is running. The AC itself is not operating as the compressor is turned by the motor.
On average, I would suggest 1-5 seconds - a second try is normal too.
It is not supposed to be on when engine is running unless there is a problem.
The fuel pump relay is probably stuck. Try replacing the fuel pump relay.
The ignition timing is out
Usually the key is turned off. More information will help get better answers.
the car needs air to power the locks and turning off the carso this means that you have a leak in your system that's normal for the older cars