P2339 Dodge Code - Cylinder 4 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
- P2339 Dodge indicates Cylinder 4 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.
Code P2339 Dodge Description
What are the Possible Causes of the DTC P2339 Dodge?
- 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 P2339 Dodge?
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 P2339 Dodge 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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Frequently Asked Questions about P2339 Dodge Code
What does the OBDII code P2339 mean on a Dodge vehicle?
1. P2339 indicates that the knock sensor has detected excessive knocking or pinging in cylinder 4, which is above the normal threshold. 2.
What are the symptoms of the P2339 code in a Dodge?
Common symptoms include engine knocking noises, reduced performance, poor fuel economy, potential misfires, and the check engine light being illuminated. 3.
What causes the P2339 code to appear in a Dodge?
Causes can include a faulty knock sensor, incorrect ignition timing, low-quality or incorrect fuel, a malfunctioning fuel injector, or carbon buildup in the engine. 4.
Can I drive my Dodge with the P2339 code active?
Driving with this code is not recommended as prolonged knocking can cause engine damage, such as piston or cylinder wall wear. 5.
How is the P2339 code diagnosed in a Dodge?
A mechanic will use a scan tool to confirm the code, inspect the knock sensor and related wiring, check for carbon deposits, test the fuel injectors, and verify ignition timing. 6.
How can the P2339 code be fixed in a Dodge?
Repairs may include replacing a faulty knock sensor, cleaning or replacing the fuel injector for cylinder 4, addressing carbon buildup, or using higher-octane fuel as recommended. 7.
Can bad fuel cause the P2339 code in a Dodge?
Yes, using low-quality or incorrect octane fuel can lead to engine knocking and trigger the P2339 code. 8.
How much does it cost to fix the P2339 code on a Dodge?
Repair costs vary but may range from $100 to $500, depending on whether the issue is a knock sensor replacement, fuel system cleaning, or other related repairs. 9.
Will clearing the P2339 code with a scan tool fix the issue?
Clearing the code may turn off the check engine light temporarily, but it won’t fix the underlying problem causing the excessive knocking. 10.
Can a spark plug issue cause the P2339 code on a Dodge?
Yes, a worn or damaged spark plug in cylinder 4 can cause improper combustion, potentially leading to knocking and triggering the P2339 code.
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