Does Revving an Engine Help Jump a Car?

Introduction

Jumping a car is a common procedure that can be used to start a vehicle that has a dead battery. The process involves using jumper cables to connect the battery of a running vehicle to the battery of the dead vehicle. This allows the running vehicle to provide power to the dead vehicle’s starter, which can then start the engine.

One common question that people have about jump starting a car is whether or not it is helpful to rev the engine of the running vehicle. Some people believe that revving the engine will help to jump start the car more quickly, while others believe that it is not necessary and may even be harmful.

Does Revving the Engine Help?

The answer to the question of whether or not revving the engine helps to jump start a car is not entirely clear. There is some evidence to suggest that it may be helpful in some cases, but it is not always necessary.

One of the main reasons why revving the engine may be helpful is that it can help to increase the voltage of the running vehicle’s battery. This can make it easier for the dead vehicle to start, as it will require less power to turn over the engine.

However, it is important to note that revving the engine too high can actually be harmful. This is because it can put unnecessary strain on the engine and its components. In some cases, it can even cause the engine to stall.

When to Rev the Engine

If you are going to rev the engine of the running vehicle, it is important to do so only if it is necessary. In general, it is only necessary to rev the engine if the dead vehicle is having difficulty starting. If the dead vehicle starts easily, then there is no need to rev the engine.

If you do need to rev the engine, it is important to do so gently. Start by revving the engine to around 2,000 RPM. If the dead vehicle does not start after a few seconds, you can gradually increase the RPMs. Do not rev the engine too high, as this can be harmful.

Conclusion

Whether or not you need to rev the engine of the running vehicle when jump starting a car depends on the specific situation. In general, it is only necessary to rev the engine if the dead vehicle is having difficulty starting. If the dead vehicle starts easily, then there is no need to rev the engine.

If you do need to rev the engine, it is important to do so gently and only as much as necessary. Revving the engine too high can actually be harmful.