Does Revving the Engine Help Jump a Car?

Introduction

When your car battery dies, it can be frustrating and inconvenient. One common solution is to jump-start the car with another vehicle. However, there is some debate about whether or not revving the engine of the donor car helps to jump-start the dead car.

How Does Jump-Starting Work?

When you jump-start a car, you are connecting the battery of the donor car to the battery of the dead car. This allows the donor car’s battery to provide power to the dead car’s starter motor, which then turns over the engine.

Does Revving the Engine Help?

There is no scientific evidence to support the claim that revving the engine of the donor car helps to jump-start the dead car. In fact, some experts believe that revving the engine can actually damage the donor car’s alternator.

Why Revving the Engine Might Seem to Help

There are a few reasons why revving the engine might seem to help jump-start a car:

• The increased RPMs can help to spin the starter motor faster. This can be helpful if the dead car’s battery is very weak.
• The increased voltage can help to overcome the resistance in the dead car’s battery. This can also be helpful if the dead car’s battery is very weak.
• The increased noise can help to distract the driver of the dead car from the fact that the engine is not starting. This can give the driver more time to try to start the engine.

Conclusion

While revving the engine of the donor car might seem to help jump-start the dead car, there is no scientific evidence to support this claim. In fact, revving the engine can actually damage the donor car’s alternator. If you are having trouble jump-starting a car, it is best to try using a different donor car or to call a tow truck.