Engine-CodesChevrolet – P0351 2018 Chevrolet Silverado

P0351 2018 Chevrolet Silverado Code - Ignition Coil 1 Control Circuit

Quick Answer

The P0351 diagnostic trouble code (DTC) in a 2018 Chevrolet Silverado indicates a problem with the ignition coil 1 control circuit. Common causes include Faulty ignition coil, Damaged wiring in the ignition coil control circuit, Short circuit in the ignition coil control circuit. 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 Chevrolet Silverado indicates Ignition Coil 1 Control Circuit.
Common causes
Common causes include Faulty ignition coil, Damaged wiring in the ignition coil control circuit, Short circuit in the ignition coil control circuit.
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.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P0351 2018 Chevrolet Silverado Description

The P0351 diagnostic trouble code (DTC) in a 2018 Chevrolet Silverado indicates a problem with the ignition coil 1 control circuit. The ignition coil is a critical component in the vehicle's ignition system, responsible for converting the low voltage from the battery into the high voltage needed to create a spark in the spark plugs. In this specific case, the code signifies that there is a malfunction in the control circuit for the ignition coil 1, which can lead to misfires, rough idling, and overall poor engine performance.

OBDII Code P0351 2018 Chevrolet Silverado - Ignition Coil 1 Control Circuit
P0351 2018 Chevrolet Silverado Code - Ignition Coil 1 Control Circuit

Common Causes of P0351 2018 Chevrolet Silverado

  1. Faulty ignition coil
  2. Damaged wiring in the ignition coil control circuit
  3. Short circuit in the ignition coil control circuit
  4. Open circuit in the ignition coil control circuit
  5. Issues with other ignition system components

Symptoms of P0351 2018 Chevrolet Silverado

  1. Engine misfires
  2. Rough idling
  3. Lack of power
  4. Difficulty starting the engine
  5. Decreased fuel efficiency

How to Fix P0351 2018 Chevrolet Silverado

  1. Diagnose the root cause of the issue using a scan tool to pinpoint the exact problem.
  2. Inspect the ignition coil and control circuit for any visible damage or signs of wear.
  3. Test the ignition coil and control circuit for continuity and proper voltage using a multimeter.
  4. Replace the faulty ignition coil or repair any damaged wiring in the control circuit.
  5. Clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0351 2018 Chevrolet Silverado

The typical repair costs for addressing the P0351 code in a 2018 Chevrolet Silverado can range from $150 to $300, depending on the specific issue and the cost of parts and labor. This estimate includes the cost of a new ignition coil, if needed, as well as any additional parts or materials required for the repair. It's important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check local rates for a more precise estimate.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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