2017 Honda CR-V Has Rough Idle

Causes of Rough Idling in Your 2017 Honda CR-V and How to Resolve the Issue

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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 2017 Honda CR-V 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 2017 Honda CR-V 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 and fix a rough idle in a 2017 Honda CR-V?

To effectively diagnose and fix a rough idle in your 2017 Honda CR-V, start with a systematic approach that prioritizes simpler checks before moving on to more complex diagnostics. Begin by using an OBD-II scanner to check for any error codes, as these can provide immediate insight into potential issues. Next, inspect the spark plugs for wear or damage, as faulty plugs can significantly impact engine performance. Following this, examine the air filter for clogs, which can restrict airflow and affect idle quality. It's also crucial to check for vacuum leaks in the hoses, as these can lead to an unstable idle. Cleaning the throttle body is another important step, as carbon buildup can interfere with engine operation. Additionally, assess the fuel system for clogs or pressure issues, and ensure the PCV valve is functioning correctly. Don’t overlook the engine mounts, as worn mounts can contribute to vibrations that mimic a rough idle. If all else fails, performing an idle relearn procedure may help recalibrate the engine's idle speed. By following this structured diagnostic approach, you can effectively identify and resolve the rough idle issue in your vehicle.

What are the common causes of a rough idle in a 2017 Honda CR-V?

When dealing with a rough idle in your 2017 Honda CR-V, it's crucial to understand the common problems that could be at play. One of the first areas to check is the air filter; a dirty or clogged filter can significantly restrict airflow to the engine, leading to performance issues. Additionally, inspect the spark plugs, as worn or faulty plugs can cause misfiring, which directly contributes to a rough idle. Another potential culprit is vacuum leaks, which can disrupt the air-fuel mixture and result in an unstable idle. Don't overlook the fuel system; issues such as a clogged fuel filter or malfunctioning fuel injectors can severely impact engine performance. Furthermore, a faulty oxygen sensor can throw off the air-fuel ratio, exacerbating idle problems. Lastly, consider the ignition system, as problems with components like the ignition coil can also lead to rough idling. By systematically checking these areas, you can identify and resolve the underlying issues affecting your vehicle's performance.

How urgent is it to address the rough idle in my 2017 Honda CR-V?

Addressing a rough idle in your 2017 Honda CR-V is not just a matter of comfort; it is crucial for the overall health of your vehicle. Ignoring this symptom can lead to more severe engine problems, decreased fuel efficiency, and even costly repairs down the line. A rough idle often signals that something is amiss, whether it be a malfunctioning spark plug, a dirty fuel injector, or an issue with the engine's air intake system. If left unchecked, these problems can escalate, potentially resulting in significant engine damage that could compromise your vehicle's safety and performance. Therefore, it is essential to prioritize diagnosing and fixing a rough idle promptly. By doing so, you not only enhance your driving experience but also safeguard your investment in your Honda CR-V, ensuring it remains reliable for years to come.

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