What will happen if I turn the key when my car has already started?

don r 10/08/2018. 11 answers
Cars & Transportation Maintenance & Repairs

On my older car I would hear a winding noise. What would happen on a modern car?

11 Answers

don r 10/08/2018.

My car doesn't do anything if I turn the key again after the engine starts.

☣ - ₲ⱠɆ₦Đ₳ - ☣ 10/08/2018.

On a modern car nothing will happen. The starter circuit is bypassed when the computer senses that the engine is running.

JOHN 10/08/2018.

Horrible grinding noise - do not do it.

Anonymous 10/08/2018.

It will BREAK the starter and flywheel if you keep doing it. Do NOT do it.

JetDoc 10/08/2018.

The "winding noise" you hear is the gear from the starter motor grinding against the flywheel. That is a BAD THING. I would expect that a "modern car" would have the same reaction.

regerugged 10/08/2018.

You would grind the gears between the starter and flywheel.

Jay P 10/08/2018.

Many new vehicles will lock out the starter while the engine is running to protect the starter and flywheel ( or ring gear ).

thebax2006 10/08/2018.

You grind the starter gear and flywheel teeth down until they won't engage anymore. Then the motor and/or transmission has to come out to replace the flywheel.

Dimo 10/08/2018.

On my smart Fortwo, if I try to start with the engine running it just ignores me.

ICU2 10/08/2018.

You grind the teeth off your starter and fly wheel...

Erik 10/08/2018.

Just an unpleasant noise.

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