P3428 GMC Code - Cylinder 4 Deactivation Solenoid Valve Control Circuit High Voltage
Quick Answer
The P3428 diagnostic trouble code (DTC) for GMC vehicles specifically indicates an issue with the Cylinder 4 Deactivation Solenoid Valve Control Circuit having high voltage. Common causes include Faulty cylinder 4 deactivation solenoid valve, Damaged wiring or connectors in the control circuit, Malfunctioning PCM. 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 GMC indicates Cylinder 4 Deactivation Solenoid Valve Control Circuit High Voltage.
- Common causes
- Common causes include Faulty cylinder 4 deactivation solenoid valve, Damaged wiring or connectors in the control circuit, Malfunctioning PCM.
- 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 GMC Description
The P3428 diagnostic trouble code (DTC) for GMC vehicles specifically indicates an issue with the Cylinder 4 Deactivation Solenoid Valve Control Circuit having high voltage. This code is typically found in vehicles equipped with cylinder deactivation technology, which allows the engine to deactivate certain cylinders during light load conditions to improve fuel efficiency. The solenoid valve controls the activation and deactivation of specific cylinders, and when the control circuit detects a high voltage, it means that there is a problem with the electrical signal controlling the solenoid valve in cylinder 4.
Common Causes of P3428 GMC
- Faulty cylinder 4 deactivation solenoid valve
- Damaged wiring or connectors in the control circuit
- Malfunctioning PCM
- Internal engine issue affecting cylinder 4
- Electrical short or open circuit in the control circuit
Symptoms of P3428 GMC
- Check Engine Light illuminated on the dashboard
- Engine misfires
- Reduced power and acceleration
- Rough idling
- Decreased fuel efficiency
How to Fix P3428 GMC
- Begin by diagnosing the specific cause of the high voltage in the cylinder 4 deactivation solenoid valve control circuit using a diagnostic scanner.
- Inspect the wiring and connectors for any damage or corrosion, repairing or replacing as necessary.
- Test the cylinder 4 deactivation solenoid valve for proper operation and replace if it is found to be faulty.
- Check the PCM for any faults or reprogramming that may be required to address the high voltage issue.
- Clear the diagnostic trouble codes and test drive the vehicle to ensure that the repair has successfully resolved the problem.
Cost to Fix P3428 GMC
The typical repair costs for addressing a P3428 code can vary depending on the specific cause of the issue. In general, replacing a faulty solenoid valve or repairing damaged wiring may cost between $150 and $300 for parts and labor. However, if the PCM needs to be replaced or reprogrammed, the total repair costs could range from $300 to $600 or more. It's important to note that diagnosis time and labor rates can vary at different auto repair shops, so it's recommended to obtain quotes from local shops for a more accurate estimate.
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Information for Specific GMC Models
- P3428 2014 GMC Sierra — Cylinder 4 Deactivation Solenoid Valve Control Circuit High Voltage
- P3428 2015 GMC Sierra — Cylinder 4 Deactivation Solenoid Valve Control Circuit High Voltage
- P3428 2016 GMC Sierra — Cylinder 4 Deactivation Solenoid Valve Control Circuit High Voltage
- P3428 2017 GMC Sierra — Cylinder 4 Deactivation Solenoid Valve Control Circuit High Voltage
- P3428 2018 GMC Sierra — Cylinder 4 Deactivation Solenoid Valve Control Circuit High Voltage
Frequently Asked Questions about P3428 GMC Code
1. What are the common symptoms of OBDII code P3428 for a GMC vehicle?
- Common symptoms include rough idling, reduced engine performance, and the Check Engine light being illuminated.
2. What does the OBDII code P3428 for a GMC signify?
- This code indicates a high voltage condition in the circuit controlling the Cylinder 4 Deactivation Solenoid Valve.
3. What are the potential causes of OBDII code P3428 in a GMC vehicle?
- Possible causes include a faulty solenoid valve, wiring issues, a malfunctioning PCM, or a poor electrical connection.
4. How can I diagnose the Cylinder 4 Deactivation Solenoid Valve Control Circuit for high voltage issues?
- Use a multimeter to check the voltage at the solenoid valve, inspect the wiring for any damage, and perform a continuity test on the circuit.
5. Is it safe to continue driving with OBDII code P3428 present in a GMC vehicle?
- It is not recommended to drive with this code active, as it can lead to further engine damage and reduced fuel efficiency.
6. Can I repair OBDII code P3428 in a GMC vehicle myself?
- Depending on your automotive repair skills, you may be able to replace the solenoid valve or repair wiring issues yourself. However, professional diagnosis and repair are recommended for complex electrical problems.
7. How much does it typically cost to fix OBDII code P3428 in a GMC vehicle?
- The cost can vary depending on the underlying issue, but expect to pay anywhere from $100 to $400 for parts and labor.
8. Will resetting the Check Engine light make OBDII code P3428 go away in a GMC vehicle?
- Resetting the light will temporarily clear the code, but if the underlying issue is not addressed, the code will likely return after some time.
9. How urgent is it to address OBDII code P3428 in a GMC vehicle?
- It is recommended to address this code promptly to prevent further engine damage and ensure optimal vehicle performance.
10. Can OBDII code P3428 cause other problems in a GMC vehicle if left unresolved?
- Ignoring this code can lead to issues like decreased fuel efficiency, engine misfires, and potential damage to other engine components.
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