P0304 2007 Nissan Pathfinder Code - Number 4 Cylinder Misfire Detected
Quick Answer
When a vehicle's onboard diagnostics system detects a misfire in the number 4 cylinder, it triggers the OBD-II trouble code P0304. Common causes include Faulty spark plug or ignition coil, Clogged fuel injector, Vacuum leaks in the intake manifold. 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
- P0304 2007 Nissan Pathfinder indicates Number 4 Cylinder Misfire Detected.
- Common causes
- Common causes include Faulty spark plug or ignition coil, Clogged fuel injector, Vacuum leaks in the intake manifold.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P0304 2007 Nissan Pathfinder Description
When a vehicle's onboard diagnostics system detects a misfire in the number 4 cylinder, it triggers the OBD-II trouble code P0304. This code specifically indicates that the powertrain control module (PCM) has detected a misfire in the fourth cylinder of the engine. In a 2007 Nissan Pathfinder, this could be indicative of various issues affecting the combustion process in that particular cylinder.
Common Causes of P0304 2007 Nissan Pathfinder
- Faulty spark plug or ignition coil
- Clogged fuel injector
- Vacuum leaks in the intake manifold
- Low compression in the cylinder
- Issues with the engine's timing
Symptoms of P0304 2007 Nissan Pathfinder
- Rough idling or vibrations while the engine is running
- Loss of power or hesitation during acceleration
- Engine misfires or stalling
- Check Engine Light illuminated on the dashboard
How to Fix P0304 2007 Nissan Pathfinder
- Diagnose the specific cause of the misfire by performing a thorough inspection of the ignition system, fuel system, and engine components.
- Replace the spark plug in the number 4 cylinder and check the ignition coil for any signs of damage.
- Clean or replace the fuel injector for the affected cylinder.
- Inspect the intake manifold for any vacuum leaks and repair as necessary.
- Perform a compression test on the number 4 cylinder to check for any internal engine issues.
Cost to Fix P0304 2007 Nissan Pathfinder
The typical repair costs for addressing a misfire in the number 4 cylinder of a 2007 Nissan Pathfinder can vary depending on the specific cause of the issue. Generally, replacing a spark plug or ignition coil can cost between $50 to $200 per part, while cleaning or replacing a fuel injector can range from $50 to $300. Labor costs can add an additional $100 to $300, depending on the shop's hourly rates and the complexity of the repair. Overall, the total repair cost for this issue could range from $200 to $800, but it's best to obtain a detailed estimate from a certified mechanic based on the specific diagnosis and repair needed.
Tech Notes for P0304 2007 Nissan Pathfinder
Need more information about the P0304 2007 Nissan Pathfinder code?
Need more information on how to fix the P0304 2007 Nissan Pathfinder code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0304 2007 Nissan Pathfinder code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0304 2007 Nissan Pathfinder Code
1. What does the OBDII code P0304 mean on a 2007 Nissan Pathfinder?
P0304 indicates a misfire has been detected in cylinder number 4 of the engine.
2. What are the common symptoms of a P0304 code?
Symptoms include a rough idle, reduced engine performance, poor fuel economy, hesitation during acceleration, and the check engine light being illuminated.
3. What causes a P0304 code in a 2007 Nissan Pathfinder?
Common causes include a faulty spark plug, a bad ignition coil, a clogged fuel injector, low engine compression, or a vacuum leak near cylinder 4.
4. Can I still drive my 2007 Nissan Pathfinder with a P0304 code?
Driving with a P0304 code is not recommended as it can cause further engine damage, such as overheating the catalytic converter or damaging internal components.
5. How do I diagnose a P0304 code on my 2007 Nissan Pathfinder?
Start by inspecting the spark plug, ignition coil, and fuel injector for cylinder 4. Check for vacuum leaks, low compression, or wiring issues related to the ignition system.
6. How can I fix a P0304 code in a 2007 Nissan Pathfinder?
Repairs may include replacing the spark plug, ignition coil, or fuel injector for cylinder 4, fixing vacuum leaks, or addressing low compression if necessary.
7. How much does it cost to repair a P0304 code on a 2007 Nissan Pathfinder?
The cost varies depending on the issue. Replacing a spark plug or ignition coil might cost $50–$200, while more complex issues like low compression could cost significantly more.
8. Can a dirty fuel injector cause a P0304 code?
Yes, a clogged or malfunctioning fuel injector can prevent proper fuel delivery to cylinder 4, causing a misfire.
9. Will a bad ignition coil trigger the P0304 code?
Yes, a failing ignition coil can prevent cylinder 4 from firing properly, leading to a misfire and triggering the code.
10. What tools do I need to troubleshoot a P0304 code?
You’ll need a diagnostic scanner, a spark plug socket, a multimeter for testing electrical components, and possibly a compression tester to check cylinder pressure.
Discuss the causes and fixes for P0304 2007 Nissan Pathfinder OBDII Code
Code P0304 2007 Nissan Pathfinder comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.