P0307 2017 Chevrolet Silverado Code - Cylinder 7 Misfire Detected
Quick Answer
A misfiring cylinder causes slight variations in the rotational speed of the crankshaft. Common causes include Faulty spark plug 7, Clogged or faulty fuel injector 7, Faulty ignition coil 7. 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
- P0307 2017 Chevrolet Silverado indicates Cylinder 7 Misfire Detected.
- Common causes
- Common causes include Faulty spark plug 7, Clogged or faulty fuel injector 7, Faulty ignition coil 7.
- 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 P0307 2017 Chevrolet Silverado Description
What are the Possible Causes of the DTC P0307 2017 Chevrolet Silverado?
- Faulty spark plug 7
- Clogged or faulty fuel injector 7
- Faulty ignition coil 7
- Fuel injector 7 harness is open or shorted
- Fuel injector 7 circuit poor electrical connection
- Ignition coil 7 harness is open or shorted
- Ignition coil 7 circuit poor electrical connection
- Insufficient cylinder 7 compression
- Incorrect fuel pressure
- Intake air leak
How to Fix the DTC P0307 2017 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 P0307
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 P0307 2017 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 P0307 2017 Chevrolet Silverado code?
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Need Help with the Code?
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Frequently Asked Questions about P0307 2017 Chevrolet Silverado Code
1. What does the OBDII code P0307 mean on a 2017 Chevrolet Silverado?
P0307 indicates a misfire has been detected in cylinder 7 of your Silverado’s engine.
2. What are the common symptoms of a P0307 code in a 2017 Silverado?
Symptoms include rough idling, reduced engine performance, poor fuel economy, and the check engine light being illuminated.
3. What causes a cylinder 7 misfire in a 2017 Chevrolet Silverado?
Common causes include a faulty spark plug, a failing ignition coil, a clogged fuel injector, low cylinder compression, or vacuum leaks near cylinder 7.
4. Can I drive my 2017 Silverado with a P0307 code?
Driving with a P0307 code is not recommended, as it can cause further engine damage and increase fuel consumption.
5. How do I fix a P0307 code on my Silverado?
Start by inspecting and replacing the spark plug or ignition coil for cylinder 7. If the issue persists, check the fuel injector, wiring, and engine compression.
6. How can I diagnose the cause of a P0307 code in my 2017 Silverado?
Use an OBDII scanner to confirm the code, inspect the spark plug and ignition coil for wear, perform a fuel injector test, and check for vacuum leaks or low compression in cylinder 7.
7. What tools are needed to fix a P0307 code on a 2017 Chevrolet Silverado?
You’ll need an OBDII scanner, a spark plug socket, a multimeter, and possibly fuel injector testing tools or a compression tester.
8. How much does it cost to repair a P0307 code on a 2017 Silverado?
Repair costs vary depending on the issue but typically range from $100 for a spark plug replacement to $300+ for ignition coil or fuel injector repairs.
9. Can a dirty air filter cause a P0307 code on a 2017 Silverado?
While unlikely, a severely clogged air filter can contribute to engine misfires by restricting airflow, but it is not a common cause of a P0307 code.
10. Could a bad fuel pump trigger a P0307 code in my Silverado?
A failing fuel pump can lead to low fuel pressure, which may indirectly cause cylinder 7 to misfire, but it is not a primary cause of this code.
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