P0358 2017 GMC Sierra Code - Ignition Coil 8 Control Circuit
Quick Answer
The P0358 diagnostic trouble code (DTC) for a 2017 GMC Sierra specifically refers to an issue with the ignition coil 8 control circuit. Common causes include Faulty ignition coil, Wiring harness issues, Powertrain control module (PCM) malfunction. 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
- P0358 2017 GMC Sierra indicates Ignition Coil 8 Control Circuit.
- Common causes
- Common causes include Faulty ignition coil, Wiring harness issues, Powertrain control module (PCM) malfunction.
- 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.
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Code P0358 2017 GMC Sierra Description
The P0358 diagnostic trouble code (DTC) for a 2017 GMC Sierra specifically refers to an issue with the ignition coil 8 control circuit. The ignition coil is a crucial component of the vehicle's ignition system, responsible for converting the low voltage from the battery into the high voltage needed to ignite the fuel-air mixture in the engine's cylinders. In this case, the control circuit for ignition coil 8 is experiencing a malfunction, which can lead to various performance issues and potentially cause long-term damage if not addressed promptly.
Common Causes of P0358 2017 GMC Sierra
- Faulty ignition coil
- Wiring harness issues
- Powertrain control module (PCM) malfunction
- Poor electrical connection
- Environmental factors such as moisture or corrosion
Symptoms of P0358 2017 GMC Sierra
- Engine misfires
- Rough idling
- Decreased fuel efficiency
- Loss of power and acceleration
- Engine stalling
How to Fix P0358 2017 GMC Sierra
- Begin by conducting a thorough inspection of the ignition coil 8 control circuit, checking for any visible damage or loose connections.
- Test the ignition coil using a multimeter to determine if it is functioning properly.
- Inspect the wiring harness for any signs of wear, damage, or corrosion, and repair or replace as needed.
- Check the powertrain control module (PCM) for any error codes related to the ignition coil 8 control circuit and address them accordingly.
- Clear the DTC and perform a test drive to ensure that the issue has been resolved.
Cost to Fix P0358 2017 GMC Sierra
The typical repair costs for addressing the P0358 code on a 2017 GMC Sierra can range from $150 to $400, depending on the specific cause of the issue and the cost of parts and labor in your area. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to obtain quotes from multiple sources to ensure a competitive price. Additionally, factors such as the vehicle make and model, engine type, and location can influence the overall repair costs.
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Frequently Asked Questions about P0358 2017 GMC Sierra Code
1. What does the OBDII code P0358 mean on a 2017 GMC Sierra?
P0358 indicates a problem with the ignition coil 8 control circuit, which may prevent proper spark delivery to the engine cylinder.
2. What are the common symptoms of code P0358 in a 2017 GMC Sierra?
Symptoms may include engine misfires, rough idling, reduced fuel efficiency, lack of power, and the check engine light being illuminated.
3. What causes the P0358 code in a 2017 GMC Sierra?
Common causes include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, a bad spark plug, or issues with the powertrain control module (PCM).
4. How can I diagnose the P0358 code on my 2017 GMC Sierra?
Start by inspecting the ignition coil 8, its wiring, and connectors for damage or corrosion. Use a multimeter to check for proper voltage and continuity. If everything looks fine, test the ignition coil itself.
5. Can a bad ignition coil cause the P0358 code on a 2017 GMC Sierra?
Yes, a faulty ignition coil for cylinder 8 is one of the most common causes of the P0358 code.
6. How do I fix the P0358 code on my 2017 GMC Sierra?
Repairs may include replacing the ignition coil for cylinder 8, repairing or replacing damaged wiring or connectors in the circuit, or reprogramming or replacing the PCM if necessary.
7. Is it safe to drive with a P0358 code on a 2017 GMC Sierra?
Driving with this code is not recommended, as it can lead to engine misfires, reduced performance, and potential damage to the catalytic converter.
8. How much does it cost to fix the P0358 code on a 2017 GMC Sierra?
Repair costs can vary but typically range from $150 to $400, depending on whether the issue is the ignition coil, wiring, or PCM.
9. Can a faulty spark plug cause the P0358 code on a 2017 GMC Sierra?
While less common, a damaged or worn spark plug in cylinder 8 can sometimes trigger this code due to incorrect ignition.
10. Do I need specialized tools to repair the P0358 code on my 2017 GMC Sierra?
Basic tools like a multimeter and an OBDII scanner are usually sufficient for diagnosing and repairing this code.
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