P0304 2016 Chevrolet Silverado Code - Cylinder 4 Misfire Detected
Quick Answer
A misfiring cylinder causes slight variations in the rotational speed of the crankshaft. Common causes include Faulty Spark Plug #4, Clogged or faulty Fuel Injector #4, Faulty Ignition Coil #4. 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 2016 Chevrolet Silverado indicates Cylinder 4 Misfire Detected.
- Common causes
- Common causes include Faulty Spark Plug #4, Clogged or faulty Fuel Injector #4, Faulty Ignition Coil #4.
- 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 P0304 2016 Chevrolet Silverado Description
What are the Possible Causes of the DTC P0304 2016 Chevrolet Silverado?
- Faulty Spark Plug #4
- Clogged or faulty Fuel Injector #4
- Faulty Ignition Coil #4
- Fuel Injector #4 harness is open or shorted
- Fuel Injector #4 circuit poor electrical connection
- Ignition Coil #4 harness is open or shorted
- Ignition Coil #4 circuit poor electrical connection
- Insufficient cylinder 4 compression
- Incorrect fuel pressure
- Intake air leak
How to Fix the DTC P0304 2016 Chevrolet Silverado?
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.
Code Tech Notes
There is a Factory Service Bulletins for All 2000-2020 Chevrolet Models:
2000-2020 Chevrolet Factory Service Bulletin OBDII Code P0304
This Factory Service Bulletin explains how this condition may be caused by significant carbon build-up on the intake and/or exhaust valves due to fuel contamination or incomplete burning of the fuel.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0304 2016 Chevrolet Silverado 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 P0304 2016 Chevrolet Silverado code?
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Need Help with the Code?
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Frequently Asked Questions about P0304 2016 Chevrolet Silverado Code
1. What does the OBDII code P0304 mean on a 2016 Chevrolet Silverado?
P0304 indicates that the engine control module (ECM) has detected a misfire in cylinder 4.
2. What are the common symptoms of a P0304 code on a 2016 Chevrolet Silverado?
Symptoms include a rough idle, reduced engine performance, poor fuel economy, hesitation during acceleration, and the check engine light turning on.
3. What causes a cylinder 4 misfire on a 2016 Chevrolet Silverado?
Common causes include a faulty spark plug, a bad ignition coil, a clogged fuel injector, low cylinder compression, or vacuum leaks near cylinder 4.
4. Can I drive my 2016 Chevrolet Silverado with a P0304 code?
Driving with a P0304 code is not recommended, as it can lead to further engine damage and reduced performance. Address the issue promptly.
5. How do I diagnose a P0304 code on my 2016 Chevrolet Silverado?
Start by inspecting the spark plug, ignition coil, and fuel injector for cylinder 4. Check for vacuum leaks, test compression, and scan for related trouble codes.
6. How do I fix a P0304 code on a 2016 Chevrolet Silverado?
Repairs may include replacing the spark plug, ignition coil, or fuel injector for cylinder 4, fixing vacuum leaks, or addressing low compression issues.
7. Can a dirty air filter cause a P0304 code on a 2016 Chevrolet Silverado?
While not a direct cause, a dirty air filter can contribute to poor engine performance, which might exacerbate misfire issues.
8. How much does it cost to fix a P0304 code on a 2016 Chevrolet Silverado?
Repair costs vary but typically range from $100 to $300 for parts and labor, depending on whether you need to replace the spark plug, ignition coil, or fuel injector.
9. Will a P0304 code damage the catalytic converter on a 2016 Chevrolet Silverado?
Yes, prolonged misfires can lead to unburned fuel entering the exhaust system, potentially damaging the catalytic converter over time.
10. Can low fuel pressure cause a P0304 code on a 2016 Chevrolet Silverado?
Yes, low fuel pressure can result in inadequate fuel delivery to cylinder 4, contributing to a misfire.
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