P3428 2016 GMC Sierra Code - Cylinder 4 Deactivation Solenoid Valve Control Circuit High Voltage
Quick Answer
The P3428 diagnostic trouble code (DTC) for a 2016 GMC Sierra specifically indicates an issue with the Cylinder 4 Deactivation Solenoid Valve Control Circuit registering high voltage. Common causes include Faulty Cylinder 4 Deactivation Solenoid Valve, Wiring issues or electrical shorts in the control circuit, Malfunctioning engine control module (ECM). 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
- P3428 2016 GMC Sierra indicates Cylinder 4 Deactivation Solenoid Valve Control Circuit High Voltage.
- Common causes
- Common causes include Faulty Cylinder 4 Deactivation Solenoid Valve, Wiring issues or electrical shorts in the control circuit, Malfunctioning engine control module (ECM).
- 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.
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Code P3428 2016 GMC Sierra Description
The P3428 diagnostic trouble code (DTC) for a 2016 GMC Sierra specifically indicates an issue with the Cylinder 4 Deactivation Solenoid Valve Control Circuit registering high voltage. In modern engines, cylinder deactivation technology is utilized to improve fuel efficiency by shutting down specific cylinders when they are not needed, such as during light load conditions. This code suggests that there is a problem with the control circuit responsible for activating and deactivating the solenoid valve in Cylinder 4.
Common Causes of P3428 2016 GMC Sierra
- Faulty Cylinder 4 Deactivation Solenoid Valve
- Wiring issues or electrical shorts in the control circuit
- Malfunctioning engine control module (ECM)
- Mechanical issues within the engine affecting Cylinder 4
- Corrosion or poor connections in the solenoid valve circuit
Symptoms of P3428 2016 GMC Sierra
- Decreased fuel efficiency
- Rough idling or engine misfires
- Illumination of the check engine light
- Reduced engine performance
- Increased emissions output
How to Fix P3428 2016 GMC Sierra
- Begin by conducting a thorough inspection of the wiring and connections related to the Cylinder 4 Deactivation Solenoid Valve Control Circuit.
- Test the solenoid valve itself to determine if it is functioning correctly or needs to be replaced.
- Check the engine control module (ECM) for any faults or errors that may be causing the high voltage issue.
- If necessary, repair or replace any damaged wiring or components in the control circuit.
- Clear the DTC and perform a test drive to ensure that the issue has been resolved.
Cost to Fix P3428 2016 GMC Sierra
The typical repair costs for addressing a P3428 code on a 2016 GMC Sierra can vary depending on the specific cause of the issue. In general, parts for a solenoid valve replacement can range from $100 to $300, while labor costs can add another $100 to $200. Additional costs may be incurred if wiring repairs or ECM diagnostics are needed. Overall, the total repair cost for this issue could range from $200 to $600. It's important to note that labor rates at auto repair shops can vary, so it's advisable to check with local providers for a more accurate estimate.
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Frequently Asked Questions about P3428 2016 GMC Sierra Code
What does the OBDII code P3428 mean on a 2016 GMC Sierra?
1. The P3428 code indicates a high voltage issue in the Cylinder 4 Deactivation Solenoid Valve Control Circuit, which is part of the Active Fuel Management (AFM) system. 2.
What are the common symptoms of code P3428 in a 2016 GMC Sierra?
Symptoms may include reduced engine performance, poor fuel economy, rough idling, misfires, or the Check Engine Light turning on. 3.
What causes the P3428 code in a 2016 GMC Sierra?
Common causes include a faulty cylinder deactivation solenoid, damaged wiring or connectors, low engine oil pressure, or a malfunctioning ECM (Engine Control Module). 4.
Can I drive my 2016 GMC Sierra with a P3428 code?
While the truck may still be drivable, ignoring the code can lead to further engine damage or poor performance. It's best to diagnose and repair the issue promptly. 5.
How do I diagnose the P3428 code on a 2016 GMC Sierra?
Start by inspecting the wiring and connectors for damage, check the cylinder 4 deactivation solenoid for faults, verify proper oil pressure, and use a scan tool to monitor circuit voltage. 6.
How do I fix the P3428 code on my 2016 GMC Sierra?
Repairs may include replacing the cylinder deactivation solenoid, repairing or replacing damaged wiring, addressing oil pressure issues, or reprogramming the ECM if necessary. 7.
Does low engine oil pressure cause the P3428 code in a 2016 GMC Sierra?
Yes, insufficient oil pressure can interfere with the AFM system, leading to the P3428 code. Ensure the oil level and pressure meet manufacturer specifications. 8.
What tools are needed to troubleshoot the P3428 code on a 2016 GMC Sierra?
You’ll need an OBDII scan tool, a multimeter to test voltage, and possibly an oil pressure gauge to check engine oil pressure. 9.
Is the P3428 code specific to the 2016 GMC Sierra?
No, the P3428 code can appear in other GM vehicles equipped with Active Fuel Management (AFM) systems, but the specific diagnostic steps may vary slightly. 10.
How much does it cost to repair a P3428 code on a 2016 GMC Sierra?
Repair costs depend on the exact cause but typically range from $100 for wiring repairs to $500 or more for solenoid replacement or ECM reprogramming.
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