P0458 2016 Chevrolet Silverado Code - Evaporative Emission Purge Solenoid Valve Control Circuit Low Voltage
Quick Answer
The P0458 diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado refers to the Evaporative Emission Purge Solenoid Valve Control Circuit Low Voltage. Common causes include Faulty Purge Solenoid Valve: The purge solenoid valve itself may be defective and not functioning properly, leading to low voltage in the control circuit, Damaged Wiring or Connectors: Wiring or connectors in the control circuit may be damaged or corroded, causing a poor connection and resulting in low voltage readings, Malfunctioning PCM: A malfunction in the powertrain control module (PCM) could be sending incorrect signals to the purge solenoid valve, causing low voltage in the control circuit. 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 2016 Chevrolet Silverado indicates Evaporative Emission Purge Solenoid Valve Control Circuit Low Voltage.
- Common causes
- Common causes include Faulty Purge Solenoid Valve: The purge solenoid valve itself may be defective and not functioning properly, leading to low voltage in the control circuit, Damaged Wiring or Connectors: Wiring or connectors in the control circuit may be damaged or corroded, causing a poor connection and resulting in low voltage readings, Malfunctioning PCM: A malfunction in the powertrain control module (PCM) could be sending incorrect signals to the purge solenoid valve, causing low voltage in the control circuit.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P0458 2016 Chevrolet Silverado Description
The P0458 diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado refers to the Evaporative Emission Purge Solenoid Valve Control Circuit Low Voltage. This code indicates that there is a problem with the control circuit for the purge solenoid valve in the vehicle's evaporative emissions system. The evaporative emissions 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, where they can be burned off during normal operation.
Common Causes of P0458 2016 Chevrolet Silverado
- Faulty Purge Solenoid Valve: The purge solenoid valve itself may be defective and not functioning properly, leading to low voltage in the control circuit.
- Damaged Wiring or Connectors: Wiring or connectors in the control circuit may be damaged or corroded, causing a poor connection and resulting in low voltage readings.
- Malfunctioning PCM: A malfunction in the powertrain control module (PCM) could be sending incorrect signals to the purge solenoid valve, causing low voltage in the control circuit.
- Vacuum Leaks: Any vacuum leaks in the evaporative emissions system could disrupt the flow of vapors and affect the functioning of the purge solenoid valve.
Symptoms of P0458 2016 Chevrolet Silverado
- Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the vehicle's dashboard.
- Rough Idle: A rough or inconsistent idle may be noticed when the engine is running, indicating a potential issue with the evaporative emissions system.
- Reduced Fuel Efficiency: A decrease in fuel efficiency may occur due to improper functioning of the purge solenoid valve control circuit.
- Failed Emissions Test: If the vehicle is subject to an emissions test, it may fail due to increased emissions output caused by this issue.
How to Fix P0458 2016 Chevrolet Silverado
- Diagnose the Issue: Use a scan tool to retrieve the specific DTC and further diagnose the issue with the evaporative emissions system.
- Inspect Wiring and Connectors: Check for any damaged or corroded wiring and connectors in the control circuit, repairing or replacing as necessary.
- Test Purge Solenoid Valve: Test the purge solenoid valve to ensure it is functioning properly and replace if found to be faulty.
- Check PCM: Verify the operation of the powertrain control module (PCM) and address any malfunctions or reprogram if needed.
- Clear DTC and Test Drive: Clear the DTC from the vehicle's memory, then test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0458 2016 Chevrolet Silverado
The typical repair costs for addressing a P0458 code on a 2016 Chevrolet Silverado can vary depending on the specific cause of the issue and the extent of repairs needed. In general, the cost of parts such as a new purge solenoid valve and any necessary wiring or connectors can range from $100 to $300. Labor costs at auto repair shops typically range from $80 to $150 per hour, with total repair costs for this issue likely falling in the $200 to $500 range. However, it is important to note that prices can vary based on location, vehicle make and model, and the specific diagnosis and repair process required. For a more accurate estimate, it is recommended to consult with a local auto repair shop.
Need more information about the P0458 2016 Chevrolet Silverado code?
Need more information on how to fix the P0458 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0458 2016 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0458 2016 Chevrolet Silverado Code
1. What does the OBDII code P0458 mean on a 2016 Chevrolet Silverado?
P0458 indicates that the Engine Control Module (ECM) has detected a low voltage issue in the evaporative emission purge solenoid valve control circuit.
2. What are the common symptoms of code P0458 in a 2016 Chevrolet Silverado?
Symptoms may include an illuminated check engine light, reduced fuel efficiency, difficulty starting, or a noticeable fuel odor.
3. What causes the P0458 code in a 2016 Chevrolet Silverado?
Common causes include a faulty purge solenoid valve, damaged wiring or connectors in the circuit, a blown fuse, or a malfunctioning ECM.
4. Can I drive my 2016 Chevrolet Silverado with a P0458 code?
While the vehicle may still be drivable, it's not recommended to ignore this code as it could lead to increased emissions and potential damage to the EVAP system.
5. How do I diagnose the P0458 code on my 2016 Chevrolet Silverado?
Diagnosis involves inspecting the purge solenoid valve, checking for damaged wiring or loose connections, testing the circuit voltage, and verifying fuse integrity.
6. How do I fix the P0458 code on a 2016 Chevrolet Silverado?
Repairs may include replacing the purge solenoid valve, repairing or replacing damaged wiring, securing loose connectors, or replacing a blown fuse.
7. How much does it cost to repair the P0458 code on a 2016 Chevrolet Silverado?
Repair costs vary but typically range from $150 to $300, depending on the part and labor rates in your area.
8. Can a bad purge solenoid valve cause the P0458 code?
Yes, a malfunctioning purge solenoid valve is a common cause of the P0458 code as it can disrupt the circuit's voltage.
9. Does the P0458 code affect emissions testing on my 2016 Chevrolet Silverado?
Yes, the P0458 code can cause your vehicle to fail emissions testing due to a malfunction in the EVAP system.
10. Can a weak battery trigger the P0458 code on a 2016 Chevrolet Silverado?
A weak battery is unlikely to cause this code, but low voltage in the circuit due to wiring issues or a faulty component could trigger it.
Discuss the causes and fixes for P0458 2016 Chevrolet Silverado OBDII Code
Code P0458 2016 Chevrolet Silverado comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.