Can you drive with your check engine light on?
The short answer is that you can technically drive with your check engine light on, but it's generally not recommended. The check engine light is an indicator that there is an issue with your vehicle's emissions control system or other components, and ignoring it can lead to further damage and more expensive repairs down the line.
What Does the Check Engine Light Mean?
The check engine light, also known as the malfunction indicator light (MIL), is a warning light that illuminates on your vehicle's dashboard when the onboard diagnostic (OBD) system detects a problem with the engine, transmission, or related systems. This light can be triggered by a wide range of issues, from a loose gas cap to a malfunctioning catalytic converter.
Driving with the Check Engine Light On
While it is possible to drive with the check engine light on, it's generally not recommended. Driving with the light on can lead to the following issues:
- Increased emissions: The check engine light is often triggered by issues with the vehicle's emissions control system, which can lead to increased air pollution and higher fuel consumption.
- Further damage: Ignoring the check engine light can allow the underlying problem to worsen, leading to more expensive repairs down the line.
- Failing vehicle inspections: In many states, vehicles must pass an emissions test to be registered or inspected, and a check engine light can cause the vehicle to fail the test.
If the check engine light is accompanied by other symptoms, such as reduced performance, strange noises, or a strong odor, it's best to have the vehicle inspected by a qualified mechanic as soon as possible.
What to Do If the Check Engine Light Comes On
If the check engine light comes on, the best course of action is to:
- Scan the vehicle's diagnostic codes: Many auto parts stores and repair shops can scan the vehicle's OBD system for free and provide a diagnostic code that can help identify the underlying issue.
- Address the problem: Once the issue has been identified, it's important to have it repaired by a qualified mechanic to prevent further damage and ensure the vehicle's safety and emissions compliance.
- Reset the check engine light: After the problem has been addressed, the check engine light can be reset, either by the mechanic or by disconnecting the vehicle's battery for a short period.
By taking these steps, you can ensure that your vehicle is running safely and efficiently, and avoid the potential consequences of driving with the check engine light on.
Can I go to AutoZone for a check engine light?
You can use the Free AutoZone Fix Finder Service to get a complete report on your vehicle so you can fix the problem quickly and put your mind at ease.
Does AutoZone check engine light for free?
We can help you get a reading yourself. Borrow an OBD reader to get a Check Engine Light reading with the AutoZone Free Fix Finder Service. It's a simple task that takes less than two minutes.
How bad is it to drive with the check engine light on?
The rule of thumb is that if the check engine light is flashing, you can't keep driving the car. It's an emergency. Often it indicates an engine misfire. If you keep driving, you will likely cause irreversible damage, mostly to the (expensive) catalytic converter.
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.
When should I worry about a check engine light?
If your car has this feature and your check engine light flashes on and off intermittently or glows red, it's a sign you should get your car to a mechanic as soon as possible. Depending on your car's make and model, a solid yellow or orange light may indicate lower severity.
Is a solid check engine light serious?
A solid check engine light generally means that there's an issue, but it's not an immediate emergency. In many cases, it could be something simple like: A loose or missing gas cap.
How long can I drive my car with the check engine light on?
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 the check engine light?
The most common cause is the oxygen sensor, which measures the oxygen remaining after the air-fuel mixture ignites. If this sensor detects an issue with oxygen use or burns out over time, the check engine light will come on. This issue leads to poor fuel economy and can cause severe engine damage if left unaddressed.
What is the most common cause of a check engine light?
The 9 Most Common Causes for the Check Engine Light
- Loose Fuel Cap. This one is actually very common.
- Oxygen Sensor. Your emissions system will have oxygen sensors that are there to detect exhaust issues.
- Other Emissions Problems.
- Spark Plugs or Ignition Coils.
- Wiring Issues.
- Transmission.
- Cooling System.
- Fuel System.
Can low oil cause a check engine light?
Low Oil and Check Engine Light
However, low oil pressure, which can be caused by low oil levels, can be a reason for the check engine light to turn on. Low oil pressure can seriously interfere with your car's performance and disable your vehicle if not addressed immediately.
