P0358 GMC Code - Ignition Coil 8 Control Circuit
Quick Answer
The P0358 GMC code indicates a problem with the ignition coil 8 control circuit in the vehicle. Common causes include Faulty ignition coil, Damaged wiring or connectors in the ignition coil circuit, ECM 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 GMC indicates Ignition Coil 8 Control Circuit.
- Common causes
- Common causes include Faulty ignition coil, Damaged wiring or connectors in the ignition coil circuit, ECM 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 GMC Description
The P0358 GMC code indicates a problem with the ignition coil 8 control circuit in the vehicle. The ignition coil is responsible for converting the low voltage from the battery into the high voltage needed to ignite the fuel-air mixture in the engine's combustion chambers. Ignition coil 8 specifically refers to the coil pack that is responsible for providing spark to the eighth cylinder in the engine.
Common Causes of P0358 GMC
- Faulty ignition coil
- Damaged wiring or connectors in the ignition coil circuit
- ECM malfunction
- Poor electrical connection
- Environmental factors such as moisture or corrosion affecting the ignition system
Symptoms of P0358 GMC
- Engine misfires
- Rough idling or shaking while the engine is running
- Reduced fuel efficiency
- Illuminated check engine light
- Lack of power or acceleration
How to Fix P0358 GMC
- Begin by checking the wiring and connectors in the ignition coil 8 control circuit for any signs of damage or corrosion. Repair or replace any damaged components.
- Test the ignition coil itself to ensure it is functioning correctly. Replace the ignition coil if it is found to be faulty.
- Clear the diagnostic trouble codes from the ECM and reset the system to see if the issue persists.
- If the problem persists, further diagnostics may be required to pinpoint the exact cause of the issue, such as testing the ECM or performing a thorough inspection of the ignition system.
Cost to Fix P0358 GMC
The cost of repairing the ignition coil 8 control circuit can vary depending on the specific issue causing the code and the make and model of the vehicle. On average, the cost of replacing an ignition coil can range from $100 to $300, including parts and labor. Additional diagnostic fees may apply, and labor rates can vary between auto repair shops. It is recommended to consult with a professional mechanic to get an accurate estimate for the repair.
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Information for Specific GMC Models
- P0358 2014 GMC Sierra — Ignition Coil 8 Control Circuit
- P0358 2015 GMC Sierra — Ignition Coil 8 Control Circuit
- P0358 2016 GMC Sierra — Ignition Coil 8 Control Circuit
- P0358 2017 GMC Sierra — Ignition Coil 8 Control Circuit
- P0358 2018 GMC Sierra — Ignition Coil 8 Control Circuit
Frequently Asked Questions about P0358 GMC Code
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