AutoCodes – RAM – P0306 RAM

P0306 RAM Code - Cylinder 6 Misfire Fault Detected

Quick Answer

When a misfire occurs, engine speed will fluctuate. Common causes include Faulty spark plug 6, Clogged or faulty fuel injector 6, Faulty ignition coil 6. 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 RAM indicates Cylinder 6 Misfire Fault Detected .
Common causes: Common causes include Faulty spark plug 6, Clogged or faulty fuel injector 6, Faulty ignition coil 6.
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.

Save to My Repairs Step-by-Step Diagnostic Guide My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,411

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 May 02, 2021

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0306 RAM Description

When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Crankshaft Position (CKP) sensor signal to vary, the Engine Control Module (ECM) can determine that a misfire is occurring.

OBDII Code P0306 RAM - Cylinder 6 Misfire Fault Detected - AutoCodes.com — P0306 RAM Code - Cylinder 6 Misfire Fault Detected

What does this mean?

What are the Possible Causes of the DTC P0306 RAM?

Faulty spark plug 6
Clogged or faulty fuel injector 6
Faulty ignition coil 6
Fuel injector 6 harness is open or shorted
Fuel injector 6 circuit poor electrical connection
Ignition coil 6 harness is open or shorted
Ignition coil 6 circuit poor electrical connection
Insufficient cylinder 6 compression
Incorrect fuel pressure
Intake air leak

How to Fix the DTC P0306 RAM?

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 does this mean?

Code Tech Notes

The P0306 code means that 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 need to be done to diagnose the problem, see "Possible Causes".

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0306 RAM 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 P0306 RAM code?

Need more information on how to fix the P0306 RAM code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0306 RAM 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 P0306 RAM Code

1. What are the common symptoms of OBDII code P0306 Cylinder 6 Misfire Fault Detected in a RAM?

- Common symptoms include engine misfiring, rough idle, loss of power, and increased fuel consumption.

2. What are the possible causes of a Cylinder 6 misfire fault in a RAM?

- The misfire can be caused by issues such as faulty ignition coil, spark plug, fuel injector, vacuum leak, or low compression in cylinder 6.

3. How can I diagnose the cause of the Cylinder 6 misfire in my RAM?

- Diagnose by checking the ignition components, fuel system, vacuum lines, and performing a compression test on cylinder 6 to pinpoint the issue.

4. Can driving with OBDII code P0306 Cylinder 6 Misfire Fault Detected damage my RAM?

- Continued driving with a misfire can lead to damage to the catalytic converter and other engine components, affecting overall performance.

5. How can I repair OBDII code P0306 Cylinder 6 Misfire Fault Detected in my RAM?

- Repair involves replacing faulty ignition components, spark plugs, fuel injectors, addressing vacuum leaks, or performing a cylinder compression test and repairs as needed.

6. What tools are needed to fix the Cylinder 6 misfire fault in a RAM?

- Tools needed may include a scan tool for diagnostics, socket set, spark plug socket, compression tester, and possibly a fuel injector tester.

7. Can a DIY enthusiast fix OBDII code P0306 Cylinder 6 Misfire Fault Detected in a RAM?

- Depending on the skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair the misfire issue, but complex issues may require professional help.

8. How much does it typically cost to repair a Cylinder 6 misfire fault in a RAM?

- The cost can vary depending on the cause of the misfire, but it may range from $100 to $500 or more for parts and labor.

9. Is it necessary to clear the OBDII code after repairing the Cylinder 6 misfire fault in a RAM?

- Yes, it is important to clear the code using a scan tool after repairing the issue to reset the Check Engine Light and monitor if the problem persists.

10. What are some preventive maintenance tips to avoid OBDII code P0306 Cylinder 6 Misfire Fault Detected in a RAM?

- Regularly maintaining ignition components, changing spark plugs as recommended, keeping up with fuel system maintenance, and addressing any issues promptly can help prevent misfire faults.