AutoCodes – Ford – P2336 Ford

P2336 Ford Code - Cylinder 1 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: P2336 Ford indicates Cylinder 1 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 4,678

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 P2336 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 P2336 Ford - Cylinder 1 Above Knock Threshold - AutoCodes.com — P2336 Ford Code - Cylinder 1 Above Knock Threshold

What does this mean?

What are the Possible Causes of the DTC P2336 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 P2336 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 P2336 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.

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Need Help with the Code?

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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 P2336 Ford Code

1. What does the OBDII code P2336 mean on a Ford vehicle?

P2336 indicates that the Engine Control Module (ECM) has detected the knock sensor for cylinder 1 is reading a signal above the expected threshold, suggesting abnormal combustion or a potential fault.

2. What are the common symptoms of P2336 on a Ford vehicle?

Symptoms may include engine knocking or pinging sounds, reduced engine performance, rough idling, poor fuel economy, and in some cases, an illuminated Check Engine Light.

3. What are the potential causes of the P2336 code in a Ford?

Possible causes include a faulty knock sensor, damaged or corroded knock sensor wiring, excessive carbon buildup in the cylinder, incorrect ignition timing, or a malfunctioning ECM.

4. Can driving with P2336 damage my Ford's engine?

Yes, prolonged driving with this code can lead to engine damage due to uncontrolled knocking or detonation, which can harm internal components like pistons and valves.

5. How can I diagnose the P2336 code in my Ford?

Start by inspecting the knock sensor and its wiring for damage or corrosion. Check for excessive carbon buildup, verify ignition timing, and use a scan tool to monitor knock sensor data.

6. Is replacing the knock sensor the only fix for P2336?

Not always. While the knock sensor may need replacement, other issues like wiring problems, carbon deposits, or ECM malfunctions should be ruled out first.

7. What tools are needed to repair a P2336 code in a Ford?

You may need an OBDII scan tool, a multimeter for wiring checks, basic hand tools for sensor replacement, and possibly a timing light or carbon cleaning tools.

8. How much does it cost to repair a P2336 code on a Ford?

Repair costs can vary. Replacing a knock sensor typically costs $150-$400, while addressing wiring issues or carbon buildup may add to the expense.

9. Can a bad fuel type trigger code P2336 in a Ford?

Yes, using low-octane or poor-quality fuel can cause engine knock, leading the knock sensor to trigger this code. Always use the recommended fuel grade for your vehicle.

10. How can I prevent P2336 from occurring again?

Regular maintenance, using the correct fuel, addressing spark plug issues promptly, and cleaning carbon buildup periodically can help prevent this code from reoccurring.