Eli5 Why do cars move at all when in drive without the accelerator being used. I’m not talking cruise control.
In: 42
In order to keep the engine running, the belts have to always be spinning, therefore the pistons are constantly firing, and whenever you idle that doesn’t stop the belts or else you would kill the engine, so with the belts constantly spinning the engine is constantly trying to get those tires to spin, only reason why it doesn’t in park is because the brake is on which stops the tires and neutral disengages the tires from the belt
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