Engine-CodesChrysler – P0306 Chrysler

P0306 Chrysler Code - Cylinder 6 Misfire Fault Detected

Quick Answer

The P0306 code for Chrysler indicates that a misfire has been detected in cylinder 6 of the engine. Common causes include Faulty spark plugs or ignition coils, Clogged fuel injectors, Vacuum leaks in the intake manifold or hoses. 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
P0306 Chrysler indicates Cylinder 6 Misfire Fault Detected .
Common causes
Common causes include Faulty spark plugs or ignition coils, Clogged fuel injectors, Vacuum leaks in the intake manifold or hoses.
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 Aug 30, 2024
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Code P0306 Chrysler Description

The P0306 code for Chrysler indicates that a misfire has been detected in cylinder 6 of the engine. A misfire occurs when the fuel-air mixture in the cylinder fails to ignite at the proper time, causing a disruption in the combustion process. This can lead to poor engine performance, decreased fuel efficiency, and potential damage to the catalytic converter over time. The misfire fault detected in cylinder 6 can be caused by a variety of issues, including ignition system problems, fuel delivery issues, vacuum leaks, or mechanical problems within the engine.

OBDII Code P0306 Chrysler - Cylinder 6 Misfire Fault Detected
P0306 Chrysler Code - Cylinder 6 Misfire Fault Detected

Common Causes of P0306 Chrysler

  1. Faulty spark plugs or ignition coils
  2. Clogged fuel injectors
  3. Vacuum leaks in the intake manifold or hoses
  4. Low compression in cylinder 6
  5. Timing belt or chain issues

Symptoms of P0306 Chrysler

  1. Rough idling or engine shaking
  2. Decreased acceleration and power
  3. Engine hesitation or stumbling
  4. Increased fuel consumption
  5. Illumination of the check engine light

How to Fix P0306 Chrysler

  1. Diagnose the specific cause of the misfire in cylinder 6 using a scan tool and inspecting ignition components, fuel system, and engine compression.
  2. Replace faulty spark plugs or ignition coils in cylinder 6.
  3. Clean or replace clogged fuel injectors.
  4. Repair any vacuum leaks in the intake manifold or hoses.
  5. Address any mechanical issues causing low compression in cylinder 6.

Cost to Fix P0306 Chrysler

The cost of repairing a cylinder 6 misfire in a Chrysler can vary depending on the specific cause of the issue and the labor rates in your area. Generally, the cost of parts such as spark plugs, ignition coils, or fuel injectors can range from $50 to $200 per component. Labor costs may range from $100 to $300, depending on the complexity of the repair and the shop's hourly rate. In total, you can expect to pay anywhere from $150 to $500 for the repair of a cylinder 6 misfire in a Chrysler vehicle.

Tech Notes for P0306 Chrysler

The P0306 code means that the cylinder 6 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 6. If the problem persists more tests needs to be done to diagnose problem, see "Possible Causes"

When is the Code Detected?

Engine Cylinder 6 is Misfiring.

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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 P0306 Chrysler Code

No Frequently Asked Questions about P0306 Chrysler Code found.

Discuss the causes and fixes for P0306 Chrysler OBDII Code

  • I have a 2012 Town and County the check engine light came on misfire cylinder 6. I changed the spark plug and coil. 2 weeks later check engine light back on misfire cylinder 6. What should I try now?

  • Any other symptoms? The next step is either a new fuel injector or perform a compression test in case you have a blown head gasket.