P0458 2014 GMC Sierra Code - Evaporative Emission Purge Solenoid Valve Control Circuit Low Voltage
Quick Answer
The P0458 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates a problem with the Evaporative Emission Purge Solenoid Valve Control Circuit experiencing low voltage. Common causes include Faulty Evaporative Emission Purge Solenoid Valve, Wiring or connector issues in the control circuit, Corrosion or damage to the electrical connections. 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 2014 GMC Sierra indicates Evaporative Emission Purge Solenoid Valve Control Circuit Low Voltage.
- Common causes
- Common causes include Faulty Evaporative Emission Purge Solenoid Valve, Wiring or connector issues in the control circuit, Corrosion or damage to the electrical connections.
- 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.
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Code P0458 2014 GMC Sierra Description
The P0458 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates a problem with the Evaporative Emission Purge Solenoid Valve Control Circuit experiencing low voltage. This valve is a crucial component of the vehicle's evaporative emissions system, which helps to control the release of fuel vapors into the atmosphere. The purge solenoid valve is responsible for regulating the flow of fuel vapor from the charcoal canister to the engine intake manifold for combustion.
Common Causes of P0458 2014 GMC Sierra
- Faulty Evaporative Emission Purge Solenoid Valve
- Wiring or connector issues in the control circuit
- Corrosion or damage to the electrical connections
- Faulty Engine Control Module (ECM)
- Vacuum leaks in the evaporative emissions system
Symptoms of P0458 2014 GMC Sierra
- Check Engine Light illuminated on the dashboard
- Rough idling or stalling when the vehicle is at a stop
- Decreased fuel efficiency
- Strong fuel odor coming from the vehicle
- Difficulty starting the engine
How to Fix P0458 2014 GMC Sierra
- Begin by inspecting the wiring and connectors associated with the Evaporative Emission Purge Solenoid Valve Control Circuit to check for any damage or corrosion.
- Test the purge solenoid valve itself to determine if it is functioning correctly. If the valve is faulty, it will need to be replaced.
- Check for any vacuum leaks in the evaporative emissions system and repair as necessary.
- If no issues are found with the wiring, connectors, or valve, the Engine Control Module (ECM) may need to be tested or replaced.
- Clear the DTC from the vehicle's computer system after completing the repairs and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0458 2014 GMC Sierra
The typical repair costs for addressing a P0458 code on a 2014 GMC Sierra can vary depending on the specific cause of the issue. In general, replacing a faulty Evaporative Emission Purge Solenoid Valve can cost between $100 and $200, including parts and labor. However, if additional components such as the ECM need to be replaced, the total repair cost could increase significantly.
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