2011 Nissan Murano Has Rough Idle

Troubleshooting Causes of Rough Idle in Your 2011 Nissan Murano and How to Resolve Them

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Reviewed by
Aisha
Written by RepairPal Car Genius
Updated January 14, 2025
0%
21% chance it's the
Spark Plugs
0%
15% chance it's the
Ignition Coil
0%
64% chance it's
Something else
The most common reasons a 2011 Nissan Murano has rough idle are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil.
  • Spark Plugs: Worn or fouled spark plugs can lead to misfires, poor fuel economy, and difficulty starting the engine.
  • Ignition Coil: A faulty ignition coil can cause misfires, rough idling, and difficulty starting the engine due to inadequate spark delivery to the spark plugs.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2011 Nissan Murano has rough idle?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

Here are a few common symptoms of worn-out brake pads:

  1. Low brake pad warning light is on: Not all vehicles are equipped with this system, but if yours is, this dashboard indicator light will likely be the first signal it’s time to replace your brake pads.
  2. Brakes start to squeal regularly: This is often one of the first signs of worn brake pads and is caused by a metallic piece built into brake pads for this exact purpose. This part contacts the brake rotor to make a squealing or whining noise when the pads are low.
  3. Brakes make loud grinding noise: If not addressed early enough, your brake pads may get so worn that the metal backing plate of the pad grinds against the metal rotor.
  4. Brake pads look thin: You may be able to visually check your brake pad thickness to determine if they need replacement.

Most often, a brake system inspection will just be a routine portion of manufacturer specified maintenance, and will be performed at mileage intervals. In those cases, there will likely be no symptoms. However, when a brake system makes a funny noise, causes vibration, is hard to use, will not slow the vehicle, prevents the vehicle from driving, makes the vehicle pull to one side, or leaks brake fluid, the vehicle will need a visit dedicated to the inspection of the brake system.

What are the steps to diagnose a rough idle in a 2011 Nissan Murano?

To effectively diagnose a rough idle in your 2011 Nissan Murano, start with a systematic approach that prioritizes simpler checks before moving on to more complex diagnostics. Begin by using an OBD-II scanner to check for any fault codes, as these can quickly point you to specific issues within the engine. Next, inspect the spark plugs for wear or fouling, as these components play a crucial role in engine performance. A clean air filter is also essential; if it’s dirty or clogged, replace it to ensure proper airflow. Don’t overlook the vacuum hoses; any cracks or disconnections can lead to air leaks that disrupt idle quality. Cleaning the throttle body is another important step, as carbon buildup can hinder airflow. Additionally, test the mass airflow sensor to ensure it’s accurately measuring air intake, as a malfunction here can significantly affect the air-fuel mixture. Finally, examine the fuel system for any blockages or pump issues, as these can impede fuel delivery and contribute to rough idling. By following this structured diagnostic approach, you can identify and resolve the underlying causes of a rough idle in your vehicle.

What are the common causes of a rough idle in a 2011 Nissan Murano?

When dealing with a rough idle in your 2011 Nissan Murano, it's essential to understand the common problems that could be at play. One of the primary culprits is dirty or faulty spark plugs, which can cause misfiring and lead to an uneven idle. Additionally, a clogged air filter can restrict airflow, disrupting the air-fuel mixture necessary for smooth engine operation. Another potential issue is a faulty oxygen sensor, which can throw off the air-fuel ratio, resulting in poor performance and rough idling. Vacuum leaks are also a concern, as they can create an improper air-fuel mixture that affects engine stability. Furthermore, problems within the fuel system, such as clogged fuel filters or injectors, can significantly impact engine performance. Lastly, a defective mass airflow sensor can miscalculate air intake, contributing to rough idling. By regularly maintaining these components and addressing any issues promptly, you can enhance your vehicle's performance and enjoy a smoother driving experience.

How urgent is it to address the rough idle in a 2011 Nissan Murano to prevent safety risks and further damage?

Addressing a rough idle in your 2011 Nissan Murano is not just a matter of comfort; it is crucial for your safety and the longevity of your vehicle. A rough idle can indicate serious underlying problems such as engine misfires or fuel system issues, which, if left unresolved, can lead to decreased fuel efficiency and significant engine damage. The longer you ignore these symptoms, the more likely you are to face escalating repair costs and potential safety hazards while driving. Regular maintenance and prompt attention to any irregularities in your vehicle's performance are essential to ensure a safe driving experience. By addressing a rough idle as soon as it occurs, you can prevent further damage and maintain the overall health of your Murano, safeguarding both yourself and others on the road.

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