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How does electricity turn on a car?

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Anonymous

16y ago
Updated: 8/16/2019

For a conventional vehicle direct current (DC) electricity from the battery causes a motor to turn which engages a gear that in turn causes the engine crankshaft to "turn over" or spin. This action makes the pistons move, drawing in a combustible fuel/air mixture. At the same time a spark is sent to each cylinder in turn. When fuel and spark combine it ignites causing the engine to start and run on the main fuel. The starter gear disengages and the starter motor stops.

Without enough energy in the battery the crankshaft cannot turn over and the engine will not start.

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Wiki User

16y ago

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