2013 Chevrolet Suburban 1500 Has Rough Idle

Troubleshooting Causes of Rough Idle in Your 2013 Chevrolet Suburban 1500 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 2013 Chevrolet Suburban 1500 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 2013 Chevrolet Suburban 1500 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 2013 Chevrolet Suburban 1500?

To effectively diagnose a rough idle in your 2013 Chevrolet Suburban 1500, 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 error codes, as these can provide immediate insights into potential issues. Next, inspect the spark plugs for wear or fouling, as these components are crucial for proper engine performance. A clean air filter is also essential; if it’s dirty or clogged, replace it to ensure optimal airflow. Following this, examine the fuel system, including the fuel filter and injectors, since blockages here can significantly impact engine function. Don’t overlook the vacuum hoses; any cracks or leaks can disrupt the air-fuel mixture, leading to a rough idle. Additionally, test the mass airflow sensor, as a malfunction here can affect engine performance. Finally, check the idle air control valve, which regulates engine idle speed; cleaning or replacing it may resolve the issue. By following this structured diagnostic approach, you can efficiently identify and address the causes of a rough idle in your vehicle.

What are the common problems that could cause a rough idle in a 2013 Chevrolet Suburban 1500?

When dealing with a rough idle in your 2013 Chevrolet Suburban 1500, it's essential to understand the common problems that could be at play. Start by checking the air filter; a dirty or clogged filter can significantly restrict airflow, leading to performance issues. Next, inspect the spark plugs, as worn or faulty plugs can cause misfiring, which directly affects engine smoothness. Additionally, look for any vacuum leaks, as these can disrupt the air-fuel mixture and result in an unstable idle. Don't overlook the fuel system; a clogged fuel filter or a malfunctioning fuel pump can hinder engine performance. The Mass Airflow Sensor (MAF) is another critical component; if it's not functioning correctly, it can cause the engine to run either too rich or too lean, contributing to rough idling. Lastly, examine the Exhaust Gas Recirculation (EGR) valve, as a faulty EGR can interfere with the combustion process. By systematically addressing these areas, you can effectively troubleshoot and resolve the rough idle issue in your Suburban, ensuring a smoother driving experience.

How urgent is it to address the rough idle in a 2013 Chevrolet Suburban 1500?

Addressing a rough idle in your 2013 Chevrolet Suburban 1500 should be treated as a priority due to the potential risks associated with neglecting this symptom. A rough idle can indicate underlying issues such as fuel delivery problems, ignition system failures, or even more serious engine malfunctions. If left unaddressed, these problems can escalate, leading to decreased fuel efficiency and increased wear on engine components, which may result in costly repairs. Moreover, a rough idle can sometimes signal issues with the emissions system, which could pose safety risks and may require immediate attention to avoid further damage. Therefore, it is crucial to diagnose and resolve the rough idle promptly to ensure your vehicle operates smoothly and efficiently, ultimately safeguarding your investment and enhancing your driving experience.

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2013 Chevrolet Suburban 1500 Rough Idle Causes & Repairs