AutoCodes – Ford – P2337 Ford

P2337 Ford Code - Cylinder 2 Above Knock Threshold

Quick Answer

The Knock Sensor (KS) senses engine knocking (also known as detonation or pinging) using a piezoelectric element. Common causes include Faulty knock sensor, Knock sensor circuit poor electrical connection, Knock sensor harness is open or shorted. 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, Knock sensor circuit poor electrical connection, Knock sensor harness is open or shorted.
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.

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Code Popularity 5,943

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2337 Ford Description

The Knock Sensor (KS) senses engine knocking (also known as detonation or pinging) using a piezoelectric element. The sensor is attached to the cylinder block, cylinder head or intake manifold. A knocking vibration from the cylinder block is sensed as vibrational pressure. This pressure is converted into a voltage signal and sent to the Engine Control Module (ECM). The ECM uses this signal to retard the ignition timing and protect the engine from this damaging pre-ignition.

OBDII Code P2337 Ford - Cylinder 2 Above Knock Threshold - AutoCodes.com — P2337 Ford Code - Cylinder 2 Above Knock Threshold

What does this mean?

What are the Possible Causes of the DTC P2337 Ford?

Faulty knock sensor
Knock sensor circuit poor electrical connection
Knock sensor harness is open or shorted
Faulty Engine Control Module (ECM)

How to Fix the DTC P2337 Ford?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2337 Ford code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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.