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Is it OK to drive with engine management light on?

The short answer is no, it is generally not recommended to drive with the engine management light (also known as the check engine light) illuminated on your dashboard. The engine management light is an indicator that there is an issue with your vehicle's emissions control system or engine that requires attention.


What the Engine Management Light Means


The engine management light, or check engine light, is part of a vehicle's onboard diagnostics (OBD) system. When the light is illuminated, it means the OBD system has detected a problem with one or more components related to the engine's emissions or performance. This could be anything from a loose gas cap to a more serious issue like a malfunctioning catalytic converter or faulty oxygen sensor.


Potential Consequences of Driving with the Light On



  • Decreased Fuel Efficiency: An issue triggering the engine management light can cause your vehicle to use more fuel than normal.

  • Increased Emissions: Problems with the emissions control system can lead to higher levels of harmful pollutants being released from your vehicle's exhaust.

  • Further Damage to Components: Continuing to drive with an unresolved issue may cause additional damage to related engine or emissions components, leading to more expensive repairs down the line.


It's important to have the issue diagnosed and repaired as soon as possible to avoid these potential consequences.


What to Do If the Light Comes On


If the engine management light illuminates while you're driving, the best course of action is to have the vehicle inspected by a qualified mechanic as soon as possible. They can use a diagnostic tool to read the trouble codes stored in the vehicle's computer, which will help identify the specific problem. From there, they can recommend the necessary repairs to resolve the issue and turn the light off.


In the meantime, it's generally safe to continue driving, but you should avoid any aggressive acceleration or towing heavy loads, as this could further stress the affected components. If the light is flashing or the vehicle is exhibiting signs of reduced performance, it's best to have it towed to a repair shop to avoid potential engine damage.

How far can I drive with the engine management light on?


50-100 miles
You can drive the car whenever it is not showing any problem. However, it is a warning sign that should be addressed in time to avoid any potential damage. The most common question we get is how long can you drive with check engine light on? The answer is it is safe to drive from 50-100 miles.



What is the most common cause of a check engine light?


The 9 Most Common Causes for the Check Engine Light

  1. Loose Fuel Cap. This one is actually very common.
  2. Oxygen Sensor. Your emissions system will have oxygen sensors that are there to detect exhaust issues.
  3. Other Emissions Problems.
  4. Spark Plugs or Ignition Coils.
  5. Wiring Issues.
  6. Transmission.
  7. Cooling System.
  8. Fuel System.



How serious is engine management light?


A red engine management light means that there is a very serious problem. If you see this, you should stop at the nearest safe place and call your breakdown provider straight away.



Can an engine management light clear itself?


If there are no issues, then the light should turn off by itself. However, in some cases, the EML may remain on – but this may be due to the original fault still causing issues, or a new one appearing. The best thing to do is to take your car to the garage again and get a mechanic to check.



How serious is a solid check engine light?


Depending on your car's make and model, a solid yellow or orange light may indicate lower severity. However, it's still a sign that you should make an appointment to diagnose and fix the problem. A flashing check engine light means you should take in your car ASAP.



What is the first thing to check when the check engine light comes on?


Check your gas cap first. Many vehicles have a loose gas cap indicator that will be triggered before your check engine light comes on. If your gas cap is loose or the seal is not tight, the vapor leakage can cause your fuel system to trigger the check engine light.



How long can you drive with engine light on?


How long can you drive with the check engine light on? Once you see the check engine light, it is safe to drive with the light on for 50 to 100 miles. This is because if the issue is with the sensors, then this will buy some time for it to reset, turning the check engine light off.



Can I still drive my car if the check engine light is on?


You can drive as long as you want to with the check engine light on. It doesn't mean that your vehicle is running as well as it can. The other concern is if something else goes wrong you may not know since the check engine light is already on.



Why is my engine light on but nothing seems wrong?


Check engine lights can turn on for a number of reasons. Some can be minor problems such as tightening the gas cap, and others can be serious problems like engine issues. If your vehicle is running fine, the check engine light may signal a minor issue, but it is best to visit a mechanic to make sure.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.