2023 Ford F-150 Has Rough Idle

Troubleshooting Causes of Rough Idle in Your 2023 Ford F-150 and How to Resolve Them

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Reviewed by
Andrew Hajjar
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 2023 Ford F-150 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 2023 Ford F-150 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.

Brake caliper failure occurs in two different ways, and they create different symptoms.

The caliper can become stuck, in which case it won't release the brake pads. The seized caliper will cause the vehicle to brake constantly on one side, forcing the car to move toward that side. This pulling will be accompanied by a strong odor from one wheel.

Another way calipers fail is by leaking. If the caliper leaks, the brake pedal will feel too easy to push, and will sink all the way to the floor when held. Braking will become less effective the longer this goes on. There may also be brake fluid leaking onto the wheel.

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.

Brake rotors are mainly maintenance free, but when they have been subjected to abnormally hard use, the heat they absorb can cause the metal to turn blue, and cracking to occur. When this occurs, customers often specify they have lost braking power, or the vehicle's brakes are making noise. There may be no symptoms at all related to changing the brake rotors, since it is recommended to change brake rotors on most modern vehicles when performing a standard brake service.

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 2023 Ford F-150?

To effectively diagnose a rough idle in your 2023 Ford F-150, start with the simplest solutions before delving into more complex diagnostics. Begin by using an OBD-II scanner to check for any error codes, as these can quickly point you to potential issues. Next, inspect the spark plugs for wear or fouling, as they play a crucial role in engine performance. If the spark plugs are in good condition, turn your attention to the ignition system, checking the ignition coils and wires for any signs of malfunction. A clean air intake is essential, so examine the air filter and intake system for clogs that could disrupt the air-fuel mixture. Following this, assess the fuel system by inspecting the fuel injectors, filter, and pump to ensure they are functioning correctly. Don’t overlook the vacuum hoses; any leaks can significantly impact engine performance, so check for damage and replace as necessary. Finally, clean the throttle body to remove any carbon buildup that may be affecting airflow. By systematically addressing these areas, you can effectively identify and resolve the rough idle issue, restoring your truck's performance.

What are the common problems that could cause a rough idle in a 2023 Ford F-150?

When dealing with a rough idle in your 2023 Ford F-150, it's essential to understand the common problems that could be at play. One of the primary culprits is a dirty or clogged air filter, which can significantly restrict airflow to the engine, resulting in an uneven idle. Additionally, faulty spark plugs are notorious for causing misfires, leading to a rough engine performance. Another issue to consider is vacuum leaks; these can disrupt the delicate air-fuel mixture necessary for smooth operation. Fuel system problems, such as a clogged fuel filter or a malfunctioning fuel pump, can also impact engine performance and contribute to rough idling. Furthermore, a malfunctioning mass airflow sensor can throw off the air-fuel balance, exacerbating idle issues. Don't overlook the EGR valve, as a faulty one can interfere with the combustion process, leading to rough idling. Lastly, throttle body problems, including carbon buildup or issues with the throttle position sensor, can further complicate the situation. By addressing these common problems through regular maintenance and timely repairs, you can ensure your Ford F-150 runs smoothly and efficiently.

How urgent is it to address the rough idle in a 2023 Ford F-150?

Addressing a rough idle in your 2023 Ford F-150 is not just a matter of comfort; it is crucial for the vehicle's overall health and performance. A rough idle can indicate underlying engine problems, such as issues with the fuel or ignition systems, which, if left unchecked, may lead to more severe complications. Ignoring this symptom can result in decreased fuel efficiency and diminished performance, ultimately causing costly repairs down the line. Moreover, a rough idle could signal serious issues that may escalate if not addressed promptly, potentially compromising the safety and reliability of your vehicle. Regular maintenance and timely intervention are essential to prevent these risks, ensuring that your F-150 continues to operate smoothly and efficiently. Therefore, if you notice a rough idle, it is imperative to investigate and resolve the issue as soon as possible to safeguard your investment and maintain optimal driving conditions.

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