How Does the Engine Run When the Car Isn’t Moving?

When you’re driving, your car’s engine is constantly running. But what happens when you’re stopped at a red light or stuck in traffic? Does the engine just keep running, or does it turn off?

The answer is that the engine keeps running, even when the car isn’t moving. This is because the engine needs to power the car’s electrical systems, such as the lights, radio, and air conditioning. It also needs to keep the engine warm so that it can start quickly when you need to accelerate.

To keep the engine running while the car is stopped, the engine computer uses a device called an idle air control valve. This valve opens and closes to allow just the right amount of air into the engine to keep it running smoothly.

If the idle air control valve fails, the engine may stall when you come to a stop. This can be a dangerous situation, especially if you’re in traffic. If you think your idle air control valve may be faulty, have it checked by a mechanic as soon as possible.

How to Keep Your Engine Running Smoothly While Idling

Here are a few tips to help keep your engine running smoothly while idling:

• Avoid idling for long periods of time. If you’re going to be stopped for more than a few minutes, turn off the engine.
• Keep your engine tuned up. A well-tuned engine will idle more smoothly and efficiently.
• Use high-quality fuel. Low-quality fuel can cause the engine to run rough and idle poorly.
• Have your idle air control valve checked regularly. A faulty idle air control valve can cause the engine to stall when you come to a stop.

By following these tips, you can help keep your engine running smoothly while idling and avoid the dangers of stalling.