P0499 2014 GMC Sierra Code - Evaporative Emission System Vent Valve Control Circuit High
Quick Answer
The Evaporative Emission (EVAP) Vent Solenoid Valve is located on the EVAP canister and is used to seal the canister vent. Common causes include Faulty Evaporative Emission Vent Solenoid Valve, Evaporative Emission Vent Solenoid Valve harness is open or shorted, Evaporative Emission Vent Solenoid Valve electrical circuit poor connection. 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
- P0499 2014 GMC Sierra indicates Evaporative Emission System Vent Valve Control Circuit High.
- Common causes
- Common causes include Faulty Evaporative Emission Vent Solenoid Valve, Evaporative Emission Vent Solenoid Valve harness is open or shorted, Evaporative Emission Vent Solenoid Valve electrical circuit poor connection.
- 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.
Code P0499 2014 GMC Sierra Description
What are the Possible Causes of the DTC P0499 2014 GMC Sierra?
- Faulty Evaporative Emission Vent Solenoid Valve
- Evaporative Emission Vent Solenoid Valve harness is open or shorted
- Evaporative Emission Vent Solenoid Valve electrical circuit poor connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0499 2014 GMC Sierra?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0499 2014 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0499 2014 GMC Sierra Code
What does the OBDII code P0499 mean in a 2014 GMC Sierra?
P0499 indicates a high electrical circuit condition in the evaporative emission system vent valve control, suggesting an issue with the vent valve or related wiring.
What are the common symptoms of code P0499 in a 2014 GMC Sierra?
Typical symptoms include a check engine light, difficulty refueling due to excessive tank pressure, and possible fuel odor near the vehicle.
What causes the P0499 code to be triggered in a 2014 GMC Sierra?
Common causes include a faulty vent valve, damaged wiring or connectors, or high resistance in the vent valve’s control circuit.
Can I drive my 2014 GMC Sierra with the P0499 code?
Yes, you can drive the vehicle, but prolonged operation may lead to reduced fuel efficiency or further damage to the evaporative emission system.
How do I diagnose the P0499 code on a 2014 GMC Sierra?
Diagnosis involves inspecting the vent valve, checking wiring and connectors for damage, and using a multimeter to test circuit voltage and resistance.
How can I fix the P0499 code on a 2014 GMC Sierra?
Repairs may include replacing the vent valve, repairing damaged wiring or connectors, or addressing any electrical issues in the circuit.
What tools are needed to fix the P0499 code on a 2014 GMC Sierra?
You may need an OBDII scanner, a multimeter, and basic hand tools to inspect and repair the vent valve and wiring.
What is the cost to repair the P0499 code on a 2014 GMC Sierra?
Repair costs vary but typically range from $150 to $300, depending on whether the vent valve or wiring needs replacement.
Can a gas cap cause the P0499 code on a 2014 GMC Sierra?
While unlikely, a damaged or loose gas cap can contribute to EVAP system issues but is not a direct cause of the P0499 code.
How can I prevent the P0499 code from occurring in my 2014 GMC Sierra?
Regularly inspect the EVAP system components, ensure wiring is secure, and avoid overfilling the gas tank to prevent excessive pressure buildup.
Discuss the causes and fixes for P0499 2014 GMC Sierra OBDII Code
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