He turned on the ignition and then started the engine.
The ignition system is powered up and ready to run the vehicle.
Two answers:If it is an old car with a carburetor you could be suffering from a condition called pre-ignition or run on (same thing) the engine will rattle clatter and shake. This is caused by carbon build up. Change the spark plugs, check the mixture, and then try to de-carbon the engineOn a new automobile with injection you have a bad ignition switch or relay.
Faulty ignition switch.
Its not your engine. Its the fan running to cool the engine down. They all do it and nothing is wrong with your car.
WHY MY ECU 15AMP FUSE BLOWS EVERYTIME I START MY 97 ACURA INTEGRA
Gasoline engine - spark is cut off when ignition is turned off Diesel engine- fuel is cut off when engine is shut down
probably timing or valves. cylinders getting too hot which is igniting fuel that is left after it has been turned off
The ignition module will send a signal when the key is turned. If the module is no good the signal is not sent to the other ignition parts,thus not allowing the car to start
Besides the smart alec answer "start an automobile", a starter has a small gear, that will both extend as well as rotate when the key is turned. This gear will engage teeth on the flywheel/flexplate, which is bolted to the rear of the crankshaft. As the starter turns, the engine will be turned.
Electrical circuit is broken. No electricity and the engine will not run.
check the battery and connections/cables
I turned on the ignition in my car. "Houston, we have ignition!"
Yes you can
Fuel pressure (ignition key turned to on, engine not running): 50 to 60 psi
is not electrical,is from fuel shutoff is why
That the outlet only has power when the ignition is turned on.That the outlet only has power when the ignition is turned on.
When the ignition is turned on, battery voltage passes down the wire to the alternator to 'excite' the alternator when the engine starts. When the engine starts and the alternator generates a voltage, the light is extinguised by the charging voltage cancelling out the battery voltage coming down the wire. If and when the alternator completetly fails the the light will come back on as there is no sancelling voltage. if the alternator produces a voltage lower than the voltage from the ignition switch then the battery light will glow.
The acc switch in an automobile is an accessory switch. It is used for listening to the radio or other electronic equipment in the car with the engine turned off.
The ignition is draining all the power to start the engine. You may have a dead battery.
The first ignition key was installed in the 1910 Cadillac. On this car you turned the key and then pushed another button to start the engine. In 1949 Chrysler introduced the ignition key combination as we know it today.
It is normal if other lights come on at the same time. All of the reminder/warning lights should come on when ignition is in idle (key's in ignition, but the car is not running)
The check engine/service engine light should come on as soon as the ignition is turned to the on position without starting the engine. If it does not, then the bulb is either blown or has been removed.
The air temperature in a diesel engine cylinder is 1022 F. This will ignite the fuel. the high compression, 22 to1, will light the fuel. A spark engine with a carburetor may "diesel" when the key is turned off because of glowing carbon deposits in the cylinder, self ignition.