The check engine light in your Nissan Murano is an important indicator that should never be ignored. When this light comes on, it means that your vehicle is trying to communicate with you, signaling a potential issue that requires your attention.
In this comprehensive guide, we will explore what the check engine light means, what actions you should take when it illuminates, and the potential causes behind it.
Table of Contents
What Does the Nissan Check Engine Light Mean?
The Light Stays On
If the check engine light stays on but does not blink, it typically indicates that your Nissan Murano should be serviced soon. While your vehicle may not be in immediate danger, it is best not to ignore a solid check engine light.
Ignoring it could potentially lead to a small issue turning into a big problem. Therefore, it is recommended to schedule a service appointment with a Nissan dealer as soon as possible to have your vehicle inspected.
The Light Is Steady or Blinking While the Engine Is Running
If the check engine light comes on, either steady or blinking, while the engine is running, it may signify a malfunction with the emission control system.
This is a critical component of your vehicle that helps reduce harmful emissions. The light may also come on steadily if the fuel-filler cap is loose or missing or if your vehicle runs out of fuel.
The Light Comes On and Blinks While the Engine Is Off
In some cases, the check engine light may come on for a specific pattern of blinking when the engine is not running. This pattern, where the light stays steady for 20 seconds and then blinks for 10 seconds, indicates that your vehicle is not ready for an emission control system inspection or maintenance test.
To get more information about this, refer to the “Readiness for Inspection/Maintenance (I/M) Test” in your owner’s manual. It is important to have your vehicle inspected by a Nissan dealer to determine the cause of the illuminated check engine light.
Read also >> Nissan Malfunction Indicator Light (Helpful Guide)
What Should You Do When the Check Engine Light Comes On?
If the Light Stays On
If the check engine light is illuminated but not blinking, there are a few steps you can take. First, check to see if the fuel-filler cap is loose or missing. Ensure that it is closed tightly and that your vehicle has at least 3 gallons of fuel in the tank.
Once you have ensured the fuel-filler cap is secure and your vehicle has enough fuel, continue driving. If a loose fuel cap was the issue, the light should turn off after a few trips. However, if the light persists, it is recommended to have your vehicle inspected at a Nissan dealer.
A steady check engine light could indicate a problem with the emission control system.
If the Light Is Blinking
If the check engine light is blinking, it is crucial to take immediate action. This could indicate an engine misfire or a problem with the emission control system. To prevent potential damage to the emission control system, follow these precautions:
- Do not drive over 45 mph.
- Avoid hard acceleration or deceleration.
- Steer clear of steep uphill grades.
- If possible, reduce the amount of cargo being hauled or towed.
When the check engine light is blinking, it is important to get your Nissan Murano inspected at your nearest Nissan service center as soon as possible to avoid further damage to the vehicle.
Signs That the Check Engine Light May Not Be a Serious Issue
While an illuminated check engine light can be concerning, it doesn’t always indicate a serious problem. In some cases, it may be a friendly reminder to have something on your Nissan Murano serviced.
Here are five indicators that the check engine light may not be a serious issue:
- Your vehicle is running normally.
- You don’t hear any odd noises while driving.
- There is no smoke coming from your vehicle.
- You don’t detect any unusual smells inside or around your vehicle.
- Your gas mileage has not changed significantly.
If you experience these signs along with the illuminated check engine light, it is still recommended to have your vehicle inspected to ensure everything is functioning as it should.
Signs That the Check Engine Light May Indicate a Serious Issue
On the other hand, the check engine light can also be a warning sign that something needs immediate attention. Here are five indicators that the check engine light may indicate a serious issue:
- Your vehicle is making strange noises, such as knocking or rattling.
- You notice smoke coming from your vehicle.
- There is a significant loss of power in your vehicle.
- Your gas mileage has noticeably decreased.
- Your vehicle fails to start.
If you experience any of these signs along with an illuminated check engine light, it is crucial to have your Nissan Murano serviced immediately.
Common Causes of Check Engine Light in Nissan Murano
While there can be various triggers for the check engine light, a few major issues are commonly associated with an illuminated check engine light in the Nissan Murano:
1. The O2 Sensor Needs to be Replaced
The oxygen sensor measures the level of unburned oxygen in your vehicle’s exhaust system. A faulty sensor can lead to excessive fuel consumption, lower gas mileage, and potential damage to the catalytic converter and spark plugs.
2. The Catalytic Converter Isn’t Working Properly
The catalytic converter plays a crucial role in reducing harmful emissions. Failure to maintain it properly can result in decreased gas mileage and poor overall performance.
3. The Mass Airflow Sensor Needs to be Replaced
The mass airflow sensor monitors and controls the amount of air entering the engine, ensuring efficient operation. Failing to replace a faulty mass airflow sensor can lead to damage to spark plugs, O2 sensors, or the catalytic converter.
4. Spark Plugs Need to be Replaced
Spark plugs are responsible for igniting the air and fuel mixture in the combustion chamber. Faulty spark plugs can lead to decreased vehicle performance, reduced gas mileage, and potential damage to ignition coils and O2 sensors.
It is important to address these issues promptly to ensure optimal performance and prevent further damage to your Nissan Murano.
Don’t Ignore the Check Engine Light
Ignoring the check engine light in your Nissan Murano can be both costly and dangerous. This light serves as a communication tool for your vehicle, indicating potential issues that require attention.
By addressing these issues promptly, you can prevent small problems from escalating into larger, more expensive ones down the road. If your check engine light is illuminated, it is best to visit an authorized Nissan retailer or service center to have your vehicle diagnosed and ensure that everything is running smoothly.
Additionally, for genuine parts and accessories, you can shop online at Nissan Parts & Accessories to find the right fit for your Nissan Murano model and year.
Remember, your Nissan Murano’s check engine light is there to help you maintain the performance and longevity of your vehicle. By staying proactive and addressing any issues promptly, you can ensure a smooth and safe driving experience.