Engine-CodesFord – P2337 Ford

P2337 Ford Code - Cylinder 2 Above Knock Threshold

Quick Answer

The P2337 Ford diagnostic trouble code indicates that there is a problem with Cylinder 2 above knock threshold. Common causes include Faulty knock sensor in cylinder 2, Carbon buildup in the combustion chamber of cylinder 2, Incorrect ignition timing in cylinder 2. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P2337 Ford indicates Cylinder 2 Above Knock Threshold.
Common causes
Common causes include Faulty knock sensor in cylinder 2, Carbon buildup in the combustion chamber of cylinder 2, Incorrect ignition timing in cylinder 2.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 09, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P2337 Ford Description

The P2337 Ford diagnostic trouble code indicates that there is a problem with Cylinder 2 above knock threshold. In simpler terms, this means that the engine's knock sensor has detected abnormal combustion in cylinder 2, which can lead to engine knocking or pinging. Engine knocking is a condition where the air-fuel mixture ignites prematurely in the combustion chamber, causing a knocking sound and potentially damaging the engine over time.

OBDII Code P2337 Ford - Cylinder 2 Above Knock Threshold
P2337 Ford Code - Cylinder 2 Above Knock Threshold

Common Causes of P2337 Ford

  1. Faulty knock sensor in cylinder 2
  2. Carbon buildup in the combustion chamber of cylinder 2
  3. Incorrect ignition timing in cylinder 2
  4. Faulty spark plug or ignition coil in cylinder 2
  5. Engine overheating causing abnormal combustion in cylinder 2

Symptoms of P2337 Ford

  1. Engine knocking or pinging noises
  2. Reduced engine performance
  3. Decreased fuel efficiency
  4. Check Engine Light illuminated on the dashboard

How to Fix P2337 Ford

  1. Diagnose the issue by using a scan tool to read the fault codes and pinpoint the problem in cylinder 2.
  2. Inspect the knock sensor in cylinder 2 for any damage or malfunctions. Replace if necessary.
  3. Check for carbon buildup in the combustion chamber of cylinder 2 and clean if needed.
  4. Verify the ignition timing in cylinder 2 and adjust if it is incorrect.
  5. Inspect and replace any faulty spark plugs or ignition coils in cylinder 2.

Cost to Fix P2337 Ford

The typical repair costs for addressing the P2337 Ford code can range from $150 to $500, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that the actual cost may vary based on the location, vehicle make and model, and the rates of the auto repair shop. Diagnostic time and labor rates can also impact the final repair cost. It is recommended to consult with a professional mechanic to get an accurate estimate for addressing this issue.

Need more information about the P2337 Ford code?

Need more information on how to fix the P2337 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2337 Ford code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2337 Ford Code

1. What are the common symptoms of OBDII code P2337 (Cylinder 2 Above Knock Threshold) in a Ford vehicle?

- Common symptoms include engine knocking or pinging noises, reduced engine performance, and potentially rough idling.

2. What can cause the OBDII code P2337 to trigger in a Ford, indicating Cylinder 2 Above Knock Threshold?

- Possible causes include a faulty knock sensor, issues with the fuel system, ignition problems, or carbon buildup in the combustion chamber.

3. How serious is the OBDII code P2337 (Cylinder 2 Above Knock Threshold) in a Ford vehicle?

- Ignoring this code can lead to engine damage over time due to knocking, potentially resulting in more severe issues if left unresolved.

4. What are some DIY repair tips for addressing OBDII code P2337 in a Ford related to Cylinder 2 Above Knock Threshold?

- Check the knock sensor for any visible damage, inspect and clean the fuel injectors, ensure proper spark plug operation, and address any carbon deposits in the engine.

5. Can driving with the OBDII code P2337 (Cylinder 2 Above Knock Threshold) on a Ford cause further damage?

- Continuing to drive with this code can potentially worsen engine knocking, reduce fuel efficiency, and lead to more significant engine problems if not addressed promptly.

6. How can a mechanic diagnose the OBDII code P2337 (Cylinder 2 Above Knock Threshold) in a Ford vehicle?

- A mechanic may use a scan tool to read the code, inspect the knock sensor and related components, perform a visual inspection of the engine, and conduct tests to pinpoint the issue.

7. Are there any recalls or technical service bulletins related to OBDII code P2337 in Ford vehicles?

- It's recommended to check with Ford or authorized service centers for any recalls or bulletins related to this specific OBDII code in your vehicle.

8. Can a faulty knock sensor be the sole reason for triggering the OBDII code P2337 (Cylinder 2 Above Knock Threshold) in a Ford?

- While a faulty knock sensor can be a common cause, it's essential to also consider other potential factors like fuel quality, ignition system issues, or carbon buildup.

9. How much can a repair for the OBDII code P2337 (Cylinder 2 Above Knock Threshold) in a Ford typically cost?

- The cost of repairs can vary depending on the exact cause of the issue, but expenses may include parts replacement, labor costs, and diagnostic fees.

10. Is it safe to continue driving a Ford vehicle with the OBDII code P2337 (Cylinder 2 Above Knock Threshold) until it is repaired?

- It's generally not recommended to drive with this code active, as it could lead to more severe engine problems over time. It's best to address the issue promptly.

Discuss the causes and fixes for P2337 Ford OBDII Code

Code P2337 Ford comments

No comments found for this page.