Does Revving the Engine While Jumping a Car Help?

When your car battery is dead, it can be tempting to rev the engine while someone else is trying to jump-start it. But does this actually help? The answer is: no.

Why Revving the Engine Doesn’t Help

When you rev the engine, you are increasing the amount of fuel that is being sent to the cylinders. This can make it more difficult for the starter motor to turn the engine over, which can make it harder to start the car.

In addition, revving the engine can damage the starter motor. The starter motor is designed to turn the engine over at a specific speed. When you rev the engine, you are forcing the starter motor to turn the engine over at a higher speed than it is designed for, which can cause it to overheat and fail.

What to Do Instead

If your car battery is dead, the best thing to do is to wait for someone to come and jump-start it for you. If you do not have anyone to help you, you can try to jump-start the car yourself using a battery charger.

Here are some tips for jump-starting your car:

Make sure that the vehicles are parked close together, but not touching.
Turn off the engines of both vehicles.
Connect the positive (+) terminal of the jumper cables to the positive terminal of the dead battery.
Connect the negative (-) terminal of the jumper cables to an unpainted metal surface on the frame of the vehicle with the dead battery.
Start the engine of the working vehicle and let it run for a few minutes.
Attempt to start the engine of the dead vehicle.
If the engine does not start, wait a few minutes and try again.

If you are unable to start your car after several attempts, there may be a problem with the battery, the starter motor, or the electrical system. In this case, you will need to have the car towed to a mechanic for diagnosis and repair.

Conclusion

Revving the engine while jumping a car does not help. In fact, it can make it more difficult to start the car and can damage the starter motor. If your car battery is dead, the best thing to do is to wait for someone to come and jump-start it for you or use a battery charger.