2012 Nissan Rogue Has Rough Idle

Troubleshooting Causes of Rough Idle in Your 2012 Nissan Rogue and How to Resolve Them

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Reviewed by
Devin Cabugcal
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 2012 Nissan Rogue 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 2012 Nissan Rogue 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 2012 Nissan Rogue?

When diagnosing a rough idle in a 2012 Nissan Rogue, it's crucial to follow a structured diagnostic approach that begins with simpler checks before progressing to more complex issues. Start by utilizing an OBD-II scanner to retrieve any fault codes, as these can provide immediate insights into potential problems. Next, inspect the spark plugs for signs of wear or fouling, since they are essential for optimal engine performance. A clean air filter is also important; if it’s dirty or clogged, it can restrict airflow and negatively impact idle quality. Additionally, check for vacuum leaks in hoses and connections, as these can disrupt the air-fuel mixture and lead to rough idling. Don’t forget to examine the fuel system, ensuring that the fuel filter and injectors are clean and functioning correctly. Cleaning the throttle body is another vital step, as carbon buildup can obstruct airflow. Lastly, assess the idle air control valve and the EGR valve, as both components play significant roles in maintaining idle stability. By systematically addressing these areas, you can effectively diagnose and resolve the rough idle issue, ultimately improving your vehicle's overall performance and drivability.

What are the common causes of a rough idle in a 2012 Nissan Rogue?

When diagnosing a rough idle in a 2012 Nissan Rogue, it's crucial to explore several common problems that may be affecting engine performance. A dirty or clogged air filter can significantly restrict airflow, leading to an unstable idle. Additionally, worn or faulty spark plugs are known to cause misfires, which can manifest as rough idling. Vacuum leaks are another frequent issue; they disrupt the air-fuel mixture, resulting in an uneven idle. Fuel system problems, such as clogged fuel filters or malfunctioning fuel injectors, can also contribute to this issue by hindering proper fuel delivery. Moreover, a malfunctioning Mass Airflow Sensor (MAF) can miscalculate the air entering the engine, further complicating the air-fuel balance. Lastly, issues with the Exhaust Gas Recirculation (EGR) valve can interfere with the combustion process, exacerbating idle problems. By identifying and addressing these common causes through regular maintenance and timely repairs, you can effectively resolve the rough idle in your Nissan Rogue.

How urgent is it to address the rough idle in a 2012 Nissan Rogue?

Addressing a rough idle in your 2012 Nissan Rogue is not just a matter of comfort; it is crucial for the vehicle's overall health and safety. A rough idle can indicate underlying engine problems, such as faulty spark plugs, fuel system malfunctions, or issues with the air intake. If left unattended, these symptoms can escalate, leading to decreased fuel efficiency, engine misfires, and even severe damage to engine components. Moreover, a rough idle may signal more serious issues that could worsen over time, potentially putting you and your passengers at risk while driving. Regular maintenance and prompt attention to such symptoms are essential to ensure your vehicle operates smoothly and efficiently. Therefore, it is highly advisable to address any rough idle issues as soon as they arise to prevent further complications and maintain the safety and performance of your Nissan Rogue.

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