AutoCodes – Lincoln – P2337 Lincoln

P2337 Lincoln 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 Lincoln 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 1,095

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

What does this mean?

What are the Possible Causes of the DTC P2337 Lincoln?

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 Lincoln?

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 Lincoln 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 Lincoln code?

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

Need Help with the Code?

Get the P2337 Lincoln 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 Lincoln Code

1. What are the common symptoms of OBDII code P2337 in a Lincoln related to Cylinder 2 Above Knock Threshold?

- Common symptoms include engine knocking or pinging noises, decreased engine performance, and illuminated Check Engine light.

2. What are the possible causes of OBDII code P2337 in a Lincoln?

- Potential causes include a faulty knock sensor, issues with the engine's timing, a malfunctioning ignition system, or carbon buildup in the combustion chamber.

3. How can I diagnose the source of OBDII code P2337 in my Lincoln?

- To diagnose the issue, consider performing a visual inspection of the knock sensor, checking the ignition system components, inspecting the timing belt or chain, and conducting a compression test on Cylinder 2.

4. Can driving with OBDII code P2337 in a Lincoln cause further damage to the vehicle?

- Continuing to drive with this code may lead to reduced fuel efficiency, engine misfires, or potential damage to the engine over time. It's recommended to address the issue promptly.

5. What are some repair tips for resolving OBDII code P2337 in a Lincoln?

- Repair tips may include replacing the knock sensor, addressing any ignition system issues, ensuring proper engine timing, and performing a thorough cleaning of the combustion chamber.

6. Is it safe to reset the Check Engine light after fixing OBDII code P2337 in a Lincoln?

- Yes, it is safe to reset the Check Engine light using an OBDII scanner after addressing the underlying issue. This can help verify if the repair was successful.

7. Can a DIY enthusiast attempt to fix OBDII code P2337 in a Lincoln?

- Depending on the individual's mechanical skills and access to tools, some DIY enthusiasts may be able to address this code by following repair guides and manuals specific to their Lincoln model.

8. How much does it typically cost to repair OBDII code P2337 in a Lincoln at a professional auto repair shop?

- The cost of repairs for this code can vary depending on the exact cause and the labor rates of the repair shop. It's advisable to obtain multiple quotes for an accurate estimate.

9. Are there any preventative maintenance measures to avoid OBDII code P2337 in a Lincoln?

- Regularly servicing the vehicle, using high-quality fuel, and addressing engine performance issues promptly can help prevent the occurrence of code P2337 related to Cylinder 2 Above Knock Threshold.

10. Does OBDII code P2337 in a Lincoln always indicate a serious problem with the engine?

- While this code should not be ignored, it may not always indicate a severe issue. However, it's essential to diagnose and address the underlying cause to prevent potential damage to the engine.