2019 Land Rover Range Rover Has Rough Idle

Troubleshooting Causes of Rough Idle in Your 2019 Land Rover Range Rover 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 2019 Land Rover Range Rover 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 2019 Land Rover Range Rover 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 initial diagnostic steps to take for a rough idle in a 2019 Land Rover Range Rover?

When faced with a rough idle in your 2019 Land Rover Range Rover, it's essential to adopt a methodical diagnostic approach to identify and resolve the issue effectively. Start by checking the spark plugs, as worn or damaged plugs can lead to misfires that disrupt engine performance. Next, inspect the air filter; a clogged filter can restrict airflow, negatively impacting the engine's operation. Following this, examine the fuel system components, including the fuel injectors and fuel filter, to ensure proper fuel delivery. Utilizing an OBD-II scanner to check for error codes can provide valuable insights into any underlying issues. Additionally, inspect the throttle body for cleanliness and functionality, as a malfunction here can disrupt the air-fuel mixture. Finally, check for any vacuum leaks in hoses and connections, as these can significantly affect engine performance. By systematically addressing these areas, you can effectively diagnose and remedy the rough idle, ensuring your Range Rover runs smoothly.

What are the common problems that could cause a rough idle in a 2019 Land Rover Range Rover?

When diagnosing a rough idle in a 2019 Land Rover Range Rover, it's essential to consider several common problems that could be affecting the vehicle's performance. One of the primary culprits is a dirty or faulty mass airflow sensor, which can disrupt the delicate balance of the air-fuel mixture necessary for smooth engine operation. Additionally, vacuum leaks can create an imbalance in this mixture, leading to an unstable idle. Worn or faulty spark plugs are another frequent issue, as they can cause misfires that contribute to a rough idle. A clogged fuel filter may also be at fault, as it restricts fuel flow to the engine, impacting overall performance. Furthermore, problems with the idle air control valve can disrupt the engine's idle speed, while a malfunctioning oxygen sensor can adversely affect the air-fuel mixture, exacerbating the rough idle. By addressing these potential issues through regular maintenance and timely repairs, you can significantly improve the idle quality of your Range Rover and enhance its overall performance.

How urgent is it to address the rough idle in a 2019 Land Rover Range Rover?

When dealing with a rough idle in a 2019 Land Rover Range Rover, it's crucial to recognize the urgency of the situation. A rough idle can be a symptom of various underlying issues, such as fuel delivery problems, ignition system failures, or even vacuum leaks. If left unaddressed, these issues can escalate, leading to more severe engine damage and costly repairs. Additionally, a rough idle often results in decreased fuel efficiency, which can impact your overall driving experience and increase your fuel expenses. For DIY enthusiasts, while it may be tempting to overlook these symptoms, it's essential to conduct a thorough inspection and consider the potential risks involved. Regular maintenance and prompt attention to these symptoms not only enhance your vehicle's performance but also safeguard against future complications. Therefore, while it may not seem like an immediate emergency, addressing a rough idle should be a priority to ensure your Range Rover remains in optimal condition.

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