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P0458 2015 GMC Sierra Code - Evaporative Emission Purge Solenoid Valve Control Circuit Low Voltage

Quick Answer

The P0458 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates a problem with the evaporative emission purge solenoid valve control circuit having low voltage. Common causes include Damaged wiring or connectors in the control circuit, Faulty purge solenoid valve, Malfunctioning powertrain control module (PCM). Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P0458 2015 GMC Sierra indicates Evaporative Emission Purge Solenoid Valve Control Circuit Low Voltage.
Common causes
Common causes include Damaged wiring or connectors in the control circuit, Faulty purge solenoid valve, Malfunctioning powertrain control module (PCM).
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
What is this?
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code P0458 2015 GMC Sierra Description

The P0458 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates a problem with the evaporative emission purge solenoid valve control circuit having low voltage. The evaporative emission system is responsible for capturing and storing fuel vapors from the fuel tank to prevent them from escaping into the atmosphere. The purge solenoid valve controls the flow of vapors from the charcoal canister to the engine intake manifold for combustion.

OBDII Code P0458 2015 GMC Sierra - Evaporative Emission Purge Solenoid Valve Control Circuit Low Voltage
P0458 2015 GMC Sierra Code - Evaporative Emission Purge Solenoid Valve Control Circuit Low Voltage

Common Causes of P0458 2015 GMC Sierra

  1. Damaged wiring or connectors in the control circuit
  2. Faulty purge solenoid valve
  3. Malfunctioning powertrain control module (PCM)
  4. Vacuum leak in the evaporative emission system
  5. Corrosion or debris in the valve causing it to stick open or closed

Symptoms of P0458 2015 GMC Sierra

  1. Check engine light illuminated
  2. Rough idling or stalling
  3. Hesitation during acceleration
  4. Failed emissions test
  5. Decreased fuel efficiency

How to Fix P0458 2015 GMC Sierra

  1. Begin by performing a visual inspection of the wiring and connectors in the control circuit to check for any damage or corrosion. Repair or replace as necessary.
  2. Test the purge solenoid valve for proper operation using a multimeter. Replace the valve if it is found to be faulty.
  3. Check the powertrain control module (PCM) for any fault codes related to the purge solenoid valve circuit. Reset the codes and monitor for recurrence.
  4. Perform a smoke test on the evaporative emission system to check for any vacuum leaks. Repair or replace any leaking components.
  5. Clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0458 2015 GMC Sierra

The typical repair costs for addressing a P0458 code on a 2015 GMC Sierra can vary depending on the specific cause of the issue. In general, replacing a faulty purge solenoid valve can cost between $100 and $300, while diagnosing and repairing wiring or connector issues may range from $50 to $150. Labor costs at auto repair shops typically range from $80 to $150 per hour. It's advisable to consult with a professional mechanic for a more accurate estimate based on the specific circumstances of the vehicle.

What does this mean?

Tech Notes for P0458 2015 GMC Sierra









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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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