why do all cars slightly move forward when your foot is on neither the gas nor the break?

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why do all cars slightly move forward when your foot is on neither the gas nor the break?

In: Engineering

6 Answers

Anonymous 0 Comments

This would only happen on a car with an automatic transmission/torque converter because once you put the car in drive the spinning of the engine even at idle is transferred to the wheels through the TC ever so slightly. If the car is an automatic with a cvt they’re electronically controlled and won’t engage until the gas is pressed.

A manual transmission car will just stall because the connection between the engine and wheels is more direct and the idle rpm would not be enough to move it.

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