2013 Buick Enclave Has Rough Idle

Common Causes of Rough Idling in Your 2013 Buick Enclave 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 Buick Enclave 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 Buick Enclave 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 Buick Enclave?

To effectively diagnose a rough idle in a 2013 Buick Enclave, start with a systematic approach that prioritizes simpler checks before delving into more complex issues. Begin by using an OBD-II scanner to check for any error codes, as these can quickly point you to potential problems within the vehicle's computer system. Next, inspect the air filter; a dirty or clogged filter can significantly restrict airflow, leading to performance issues. Following this, examine the spark plugs for wear or fouling, as these components are crucial for proper engine combustion. After addressing these initial checks, turn your attention to the fuel system, looking for clogs in the fuel filter or issues with the fuel injectors that could affect engine performance. Additionally, inspect the Positive Crankcase Ventilation (PCV) valve, as a malfunction here can disrupt the air-fuel mixture. Don’t overlook the possibility of vacuum leaks, which can create imbalances in the engine's operation; check all vacuum hoses and connections for integrity. Finally, assess the throttle body for cleanliness and functionality, as a dirty throttle body can also contribute to a rough idle. By following this structured diagnostic approach, you can effectively identify and resolve the underlying causes of a rough idle in your Buick Enclave.

What are the common problems that could cause a rough idle in a 2013 Buick Enclave?

When dealing with a rough idle in your 2013 Buick Enclave, it's essential to consider several common problems that could be at play. One of the primary culprits is vacuum leaks, which can occur in the vacuum lines or hoses, disrupting the air-fuel mixture and causing instability in the engine's idle. Additionally, worn-out or faulty spark plugs can lead to misfires, resulting in a rough idle as the engine struggles to maintain a consistent rhythm. Engine misfires themselves can stem from various issues, including fuel delivery problems or ignition system failures. Furthermore, transmission problems, such as rough shifting or delayed engagement, can also manifest as a rough idle, indicating that the vehicle's overall performance may be compromised. Lastly, motor mount issues can create vibrations that are particularly noticeable at idle, but these vibrations may diminish when accelerating. By understanding these potential problems, DIYers can effectively diagnose and address the rough idle in their Buick Enclave, ensuring a smoother driving experience.

How urgent is it to address the rough idle in my 2013 Buick Enclave?

Addressing a rough idle in your 2013 Buick Enclave is not just a matter of comfort; it is crucial for the vehicle's overall performance and longevity. A rough idle can indicate serious underlying issues, such as faulty spark plugs, fuel system malfunctions, or air intake problems. Ignoring these symptoms can lead to decreased fuel efficiency and engine misfires, which may escalate into more severe engine damage over time. This not only compromises your vehicle's performance but can also result in costly repairs that could have been avoided with timely intervention. Regular maintenance and prompt attention to issues like a rough idle are essential to prevent further complications and ensure your vehicle operates smoothly. Therefore, if you notice a rough idle, it is imperative to address it as soon as possible to safeguard your vehicle's health and maintain optimal driving conditions.

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2013 Buick Enclave Rough Idle Causes & Repair Costs