P0351 2017 GMC Sierra Code - Ignition Coil 1 Control Circuit
Quick Answer
The P0351 diagnostic trouble code (DTC) for a 2017 GMC Sierra specifically refers to an issue with the Ignition Coil 1 Control Circuit. Common causes include Faulty ignition coil, Damaged or corroded wiring in the ignition coil circuit, Issues with the ECM or PCM. 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 2017 GMC Sierra indicates Ignition Coil 1 Control Circuit.
- Common causes
- Common causes include Faulty ignition coil, Damaged or corroded wiring in the ignition coil circuit, Issues with the ECM or PCM.
- 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 2017 GMC Sierra Description
The P0351 diagnostic trouble code (DTC) for a 2017 GMC Sierra specifically refers to an issue with the Ignition Coil 1 Control Circuit. This code indicates that there is a problem with the electrical circuit that controls the ignition coil for cylinder 1 in the engine. The ignition coil is a crucial component responsible for generating the high voltage needed to ignite the air-fuel mixture in the combustion chamber. When the control circuit for this ignition coil malfunctions, it can lead to misfires, poor engine performance, and potential long-term damage if left unresolved.
Common Causes of P0351 2017 GMC Sierra
- Faulty ignition coil
- Damaged or corroded wiring in the ignition coil circuit
- Issues with the ECM or PCM
- Poor electrical connection at the ignition coil
- Spark plug issues affecting cylinder 1
Symptoms of P0351 2017 GMC Sierra
- Rough idle or engine misfires
- Decreased fuel efficiency
- Engine hesitation or stumbling under acceleration
- Illuminated check engine light
- Engine stalling or difficulty starting
How to Fix P0351 2017 GMC Sierra
- Diagnose the issue by checking the ignition coil for cylinder 1, inspecting the wiring and connections, and testing the ECM/PCM.
- Replace the faulty ignition coil if it is determined to be the cause of the problem.
- Repair or replace any damaged or corroded wiring in the ignition coil circuit.
- Ensure proper electrical connections at the ignition coil and ECM/PCM.
- Clear the DTC and test drive the vehicle to confirm that the issue has been resolved.
Cost to Fix P0351 2017 GMC Sierra
The typical repair costs for addressing a P0351 code on a 2017 GMC Sierra can vary depending on the specific cause of the issue. In general, replacing an ignition coil can cost between $50 and $200, while addressing wiring or connection issues may range from $100 to $300. Labor costs at auto repair shops can add an additional $80 to $150 per hour. Overall, the total repair cost for this issue may range from $150 to $500 or more, depending on the extent of the repairs needed. It's recommended to consult with a professional mechanic for a more accurate estimate based on your vehicle's specific needs and location.
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Frequently Asked Questions about P0351 2017 GMC Sierra Code
What does the OBDII code P0351 mean for a 2017 GMC Sierra?
P0351 indicates a problem with the Ignition Coil 1 Control Circuit, which may affect the proper function of the engine's ignition system.
What are common symptoms of code P0351 in a 2017 GMC Sierra?
Symptoms include a rough idle, engine misfires, reduced power, poor fuel economy, and possibly the check engine light illuminating.
What causes code P0351 to appear in a 2017 GMC Sierra?
Common causes include a faulty ignition coil, wiring issues in the coil circuit, a bad coil connector, or a malfunctioning Powertrain Control Module (PCM).
Can driving with code P0351 damage the engine?
Yes, prolonged driving with this code can cause misfires, which may lead to engine damage or catalytic converter failure.
How do you diagnose code P0351 on a 2017 GMC Sierra?
Diagnosis involves inspecting the ignition coil, testing the coil's resistance, checking the wiring and connectors for damage, and scanning the PCM for further faults.
What tools are needed to fix code P0351 on a 2017 GMC Sierra?
Tools may include an OBDII scanner, a multimeter, and basic automotive repair tools like screwdrivers and pliers.
How do you fix code P0351 on a 2017 GMC Sierra?
Repairs often involve replacing the faulty ignition coil, repairing damaged wiring or connectors, or reprogramming or replacing the PCM if necessary.
Can a bad ignition coil cause other issues in a 2017 GMC Sierra?
Yes, a bad ignition coil can lead to misfires, poor engine performance, increased emissions, and reduced fuel efficiency.
What is the cost to repair code P0351 on a 2017 GMC Sierra?
Costs vary but typically range from $100 to $300 for parts and labor, depending on whether the ignition coil or wiring needs replacement.
Should I clear the code P0351 after repairs?
Yes, once repairs are completed, clear the code with an OBDII scanner to ensure the issue is resolved and monitor for recurrence.
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