2014 Honda Crosstour Has Rough Idle

Diagnosing the Causes of Rough Idle in Your 2014 Honda Crosstour and How to Resolve Them

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Reviewed by
Bo Fader
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 2014 Honda Crosstour has rough idle are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil.
  • Spark Plugs: A worn or fouled spark plug can cause misfires, rough idling, and decreased fuel efficiency due to incomplete combustion.
  • 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 2014 Honda Crosstour 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.

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 2014 Honda Crosstour?

To effectively diagnose a rough idle in a 2014 Honda Crosstour, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by checking for any trouble codes using an OBD-II scanner, as this can provide immediate insights into potential issues. If no codes are present, inspect the vacuum lines for leaks, as even minor leaks can significantly impact engine performance. Next, ensure that the throttle body and Mass Airflow Sensor (MAF) are clean and functioning properly, as dirt or malfunction in these components can lead to poor idling. Following this, examine the spark plugs for wear, since faulty plugs can cause vibrations and affect fuel efficiency. Additionally, check the ignition coil and perform a comprehensive ignition system check to rule out misfires, which can also contribute to a rough idle. Lastly, consider testing the throttle position sensor, as a malfunction here can further exacerbate idle issues. By following this structured diagnostic approach, you can effectively identify and address the root causes of a rough idle in your Honda Crosstour.

What are the common causes of a rough idle in a 2014 Honda Crosstour?

When diagnosing a rough idle in a 2014 Honda Crosstour, it's essential to consider several common problems that could be affecting your vehicle's performance. One of the primary culprits is a vacuum leak, which can disrupt the air-fuel mixture and lead to an unstable idle. Additionally, issues with spark plugs, such as wear or fouling, can cause misfires that contribute to a rough idle. Ignition coil problems are another significant factor, as they are responsible for delivering the spark needed for combustion; if they fail, the engine may struggle to maintain a steady idle. Misfiring, often linked to these ignition issues, is frequently cited as a leading cause of rough idling in many vehicles, including the Crosstour. Other potential causes include old spark plugs and plug wires, low oil levels, and the need for an ignition tune-up. Addressing these issues promptly is crucial for maintaining your vehicle's performance and preventing further complications down the line.

How urgent is it to address the rough idle in a 2014 Honda Crosstour?

Addressing a rough idle in your 2014 Honda Crosstour is not just a matter of convenience; it is crucial for maintaining the health and safety of your vehicle. Ignoring this symptom can lead to a cascade of problems, including engine damage and decreased fuel efficiency. A rough idle often signals issues with ignition components, such as spark plugs or plug wires, which, if left unchecked, can escalate into more severe engine malfunctions. Additionally, a malfunctioning fast idle valve may be at play, potentially requiring professional intervention to avoid further complications. By taking proactive measures, such as inspecting the Idle Air Control valve and ensuring there is no air in the cooling system, you can mitigate the risk of significant damage and enhance your vehicle's performance. Therefore, it is imperative to address any signs of rough idling promptly to ensure your Honda Crosstour operates smoothly and safely on the road.

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