Is it Bad to Leave Your Car Engine Running

If you live in a climate where it’s cold outside, or if you just don’t feel like turning your car off when you’re done driving, there’s a good chance that your engine will stay running even when you’re not in the car. But is this really a good idea?

What is the Danger of Leaving Your Car Engine Running

There is no one answer to this question since the danger posed by leaving your car engine running depends on a variety of factors, including the make and model of your car, the condition of the battery, and where you are parked. However, generally speaking, leaving your car engine running can create a risk of carbon monoxide poisoning. This gas is emitted from vehicles when the engine is running and can be deadly if inhaled. Carbon monoxide detectors can help you avoid this danger, but even if you don’t have one installed, it’s always best to keep your car windows closed when you’re not inside.

How to Avoid Leaving Your Car Engine Running

Leaving your car engine running can be a dangerous habit, especially when the weather is hot. Here are some tips to help you avoid doing this:

1. Make sure your car is properly cooled down before leaving it parked. Running the engine while the car is still hot can cause it to overheat and potentially catch on fire.
2. If you have to leave your car for an extended period of time, make sure to turn off the engine and remove the keys. This will reduce the chance of someone accidentally starting the engine while you’re away.
3. Whenever possible, avoid parking in areas that are difficult or impossible to access if your car has been left running. This includes areas with a lot of bushes or trees, high grass, or other obstructions. If you must park in such a location, make sure to keep an eye on your car and remember to turn off the engine as soon as you leave it.

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What to do if You Left Your Car Engine Running

If you left your car’s engine running, there are a few things you should do:
1. Turn off the car’s ignition. This will stop the engine from running and prevent damage to the car.
2. If you’re able to, open the car door and turn off the car’s interior lights. This will help preserve energy in the battery.
3. If your car has a keyless start, try turning it off before opening the door.
4. If your car has a manual starter, try using that to turn off the engine.
5. If possible, leave a note telling someone where you left the car and what you were doing when it was left running. This will help if someone finds your car later and needs help getting it started


In most cases, it is not bad to leave your car engine running while you are away. You should only do this if you know for a fact that the car will not be moved or if the battery is dead. Leaving your car engine running can help prevent damage to the car, and it will also save you money on gas.

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