P0358 2017 GMC Sierra Code - Ignition Coil 8 Control Circuit
Quick Answer
The ignition system on this engine uses ignition coils with integrated power transistors. Common causes include Faulty Ignition Coil 8, Ignition Coil 8 harness is open or shorted, Ignition Coil 8 circuit poor electrical connection. 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 8, Ignition Coil 8 harness is open or shorted, Ignition Coil 8 circuit poor electrical connection.
- 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 P0358 2017 GMC Sierra Description
What are the Possible Causes of the DTC P0358 2017 GMC Sierra?
- Faulty Ignition Coil 8
- Ignition Coil 8 harness is open or shorted
- Ignition Coil 8 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0358 2017 GMC Sierra?
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 is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0358 2017 GMC Sierra 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.
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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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