P0351 2018 GMC Sierra Code - Ignition Coil 1 Control Circuit
Quick Answer
The P0351 diagnostic trouble code (DTC) for a 2018 GMC Sierra relates to the ignition coil 1 control circuit. Common causes include Faulty ignition coil, Wiring harness issues, Loose or corroded electrical connections. 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
- P0351 2018 GMC Sierra indicates Ignition Coil 1 Control Circuit.
- Common causes
- Common causes include Faulty ignition coil, Wiring harness issues, Loose or corroded electrical connections.
- 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 P0351 2018 GMC Sierra Description
The P0351 diagnostic trouble code (DTC) for a 2018 GMC Sierra relates to the ignition coil 1 control circuit. This code indicates a problem with the control circuit of the ignition coil for cylinder 1 in the engine. The ignition coil plays a crucial role in the ignition system of the vehicle, as it is responsible for converting the low voltage from the battery into the high voltage needed to ignite the fuel-air mixture in the combustion chamber. When the control circuit for the ignition coil is faulty, it can lead to misfires, poor engine performance, and even engine stalling.
Common Causes of P0351 2018 GMC Sierra
- Faulty ignition coil
- Wiring harness issues
- Loose or corroded electrical connections
- ECU (Engine Control Unit) malfunction
- Spark plug issues
Symptoms of P0351 2018 GMC Sierra
- Engine misfires or rough idle
- Decreased fuel efficiency
- Engine stalling or hesitation
- Illuminated check engine light
- Loss of power or acceleration
How to Fix P0351 2018 GMC Sierra
- Diagnose the specific cause of the code by checking the ignition coil, wiring, and connections.
- Replace the faulty ignition coil if necessary.
- Repair or replace any damaged wiring or connectors.
- Clear the DTC from the ECU's memory.
- Test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0351 2018 GMC Sierra
The typical repair costs for addressing a P0351 code on a 2018 GMC Sierra can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor in your area. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to obtain quotes from local shops for a more accurate estimate.
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