## Does Revving Engine Help Jump Car?
### Introduction
When a car battery dies, it can be frustrating and inconvenient. One common method for jumpstarting a car is to use another running vehicle to provide a boost. However, there is a common misconception that revving the engine of the donor vehicle will help the jumpstart process.
### The Truth: Does Revving the Engine Help
**No, revving the engine of the donor vehicle does not help jumpstart a car.** In fact, it can potentially cause damage.
### Why Revving the Engine Does Not Help
The primary purpose of using a donor vehicle to jumpstart a dead battery is to provide an external source of electrical power. Revving the engine does not increase the electrical current output of the donor vehicle’s battery or alternator.
Instead, revving the engine can have the following negative effects:
1. **Increased Electrical Load:** Revving the engine puts a higher electrical load on the donor vehicle’s electrical system. This can lead to strain on the battery, alternator, and other electrical components.
2. **Reduced Battery Voltage:** At high RPMs, the voltage output of the donor vehicle’s alternator can fluctuate. This can result in a drop in battery voltage, which can hinder the jumpstarting process.
3. **Increased Risk of Damage:** Revving the engine can cause the donor vehicle’s engine to run at higher temperatures and speeds. This can put stress on the engine and increase the risk of damage to internal components.
### Best Practices for Jumpstarting a Car
The proper way to jumpstart a car is to:
1. **Park the donor vehicle close to the dead vehicle.**
2. **Connect the positive terminal (red clamp) from the donor vehicle’s battery to the positive terminal of the dead battery.**
3. **Connect the negative terminal (black clamp) from the donor vehicle’s battery to an unpainted metal surface on the engine block or frame of the dead vehicle.**
4. **Start the donor vehicle.**
5. **Wait a few minutes to allow the dead battery to charge.**
6. **Attempt to start the dead vehicle.**
7. **Once the dead vehicle is running, remove the jumper cables in reverse order.**
### Additional Tips
* Make sure the jumper cables are in good condition and securely connected.
* Avoid touching the bare metal ends of the jumper cables.
* If the jumpstart is not successful after several attempts, there may be a more serious issue with the dead battery or electrical system. Consult a mechanic for assistance.
* Never connect the positive and negative terminals of the batteries directly together as this can cause a dangerous spark and damage the electrical system.
### Conclusion
Revving the engine of the donor vehicle does not help jumpstart a car and can potentially cause damage. The proper method for jumpstarting a car involves connecting the batteries correctly and waiting for a short period of time to allow the dead battery to charge.
