<P> Push starting, also known as bump starting, clutch starting, popping the clutch or crash starting, is a method of starting a motor vehicle with an internal combustion engine by engaging the manual transmission while the vehicle is in motion . The technique is most commonly employed when other starting methods (automobile self starter, kick start, jump start etc .) are unavailable . </P> <P> The most common way to push start a vehicle is to put the manual transmission in second gear typically, switching the ignition to on / run, depressing the clutch, and pushing the vehicle until it is at a speed of 5 to 10 mph (8 to 16 km / h) or more, then quickly releasing the clutch to make the engine rotate and fire, then quickly depressing the clutch so it does not stall . This is done by one person pushing a lightweight automobile, pulling or being pushed by another vehicle or even rolling down a hill . </P>

Why do you have to push the clutch in to start a car
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