2007 Ford Explorer Has Rough Idle

Troubleshooting Causes of Rough Idle in Your 2007 Ford Explorer 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 2007 Ford Explorer 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 2007 Ford Explorer 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 2007 Ford Explorer?

To effectively diagnose a rough idle in your 2007 Ford Explorer, begin by checking the spark plugs, as worn or faulty plugs can significantly impact engine performance. Next, inspect the air filter; a dirty or clogged filter can restrict airflow, leading to an unstable idle. Following this, examine the fuel system, including the fuel filter and injectors, 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 Idle Air Control Valve (IAC), as a malfunctioning valve can disrupt idle speed. Finally, check for vacuum leaks in hoses and connections, as these can also contribute to a rough idle. By systematically addressing these areas, you can effectively troubleshoot and resolve the rough idle issue in your vehicle.

What are the common causes of a rough idle in a 2007 Ford Explorer?

When dealing with a rough idle in a 2007 Ford Explorer, it's crucial to understand the common problems that may be at play. One of the primary culprits is a dirty or clogged air filter, which can significantly restrict airflow to the engine, leading to an uneven idle. Additionally, faulty spark plugs are notorious for causing misfires, which can manifest as a rough idle. Another potential issue is vacuum leaks; these can disrupt the delicate balance of the air-fuel mixture, resulting in instability during idling. Fuel system problems, such as clogged fuel filters or malfunctioning fuel injectors, can also hinder engine performance and contribute to a rough idle. Furthermore, a faulty mass airflow sensor (MAF) can throw off the air-fuel mixture, exacerbating the issue. Lastly, the idle air control valve (IAC) plays a critical role in maintaining a steady idle speed, and if it fails, it can lead to erratic idling. By identifying and addressing these common problems, DIY enthusiasts can restore their Ford Explorer's performance and enjoy a smoother driving experience.

How urgent is it to address the rough idle in a 2007 Ford Explorer?

Addressing a rough idle in your 2007 Ford Explorer is not just a matter of comfort; it is crucial for the vehicle's overall health and performance. Ignoring this symptom can lead to a cascade of problems, including decreased fuel efficiency and engine misfires, which can escalate into more severe engine damage over time. A rough idle often indicates underlying issues such as faulty spark plugs, fuel system malfunctions, or air intake problems that require immediate attention. If left unresolved, these issues can compromise the safety and reliability of your vehicle, potentially leading to costly repairs. Therefore, it is essential to prioritize the diagnosis and resolution of a rough idle to ensure your Explorer remains dependable and efficient on the road. Regular maintenance and prompt action can significantly enhance the longevity of your vehicle, making it imperative to address any signs of trouble as soon as they arise.

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