P3402 2016 Chevrolet Silverado Code - Cylinder 1 Deactivation Solenoid Valve Control Performance
Quick Answer
The P3402 diagnostic trouble code (DTC) for the 2016 Chevrolet Silverado refers to an issue with the Cylinder 1 Deactivation Solenoid Valve Control Performance. Common causes include Faulty cylinder deactivation solenoid valve, Wiring or electrical connection issues, Engine oil sludge or debris clogging the solenoid valve. 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
- P3402 2016 Chevrolet Silverado indicates Cylinder 1 Deactivation Solenoid Valve Control Performance.
- Common causes
- Common causes include Faulty cylinder deactivation solenoid valve, Wiring or electrical connection issues, Engine oil sludge or debris clogging the solenoid valve.
- 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 P3402 2016 Chevrolet Silverado Description
The P3402 diagnostic trouble code (DTC) for the 2016 Chevrolet Silverado refers to an issue with the Cylinder 1 Deactivation Solenoid Valve Control Performance. This code indicates that there is a problem with the performance of the solenoid valve responsible for deactivating cylinder 1 in the engine. In vehicles equipped with cylinder deactivation technology, such as GM's Active Fuel Management (AFM) system, the engine can temporarily shut down cylinders to improve fuel efficiency under light load conditions.
Common Causes of P3402 2016 Chevrolet Silverado
- Faulty cylinder deactivation solenoid valve
- Wiring or electrical connection issues
- Engine oil sludge or debris clogging the solenoid valve
- Mechanical issues with the cylinder deactivation system
- Software or calibration issues
Symptoms of P3402 2016 Chevrolet Silverado
- Rough idle or rough running engine
- Engine misfires
- Reduced power or acceleration
- Decreased fuel efficiency
- Illuminated check engine light
How to Fix P3402 2016 Chevrolet Silverado
- Perform a comprehensive diagnostic scan to confirm the P3402 code and identify the specific issue with the Cylinder 1 Deactivation Solenoid Valve.
- Inspect and test the solenoid valve, wiring, and electrical connections for any faults or damage.
- Clean or replace the cylinder deactivation solenoid valve if it is found to be faulty.
- Clear the DTC and perform a test drive to verify that the issue has been resolved.
- If necessary, update the engine control module software or calibration to address any programming issues.
Cost to Fix P3402 2016 Chevrolet Silverado
The typical repair costs for addressing a P3402 code on a 2016 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, replacing a faulty solenoid valve and addressing any related wiring or electrical problems may cost anywhere from $200 to $500, including parts and labor. However, as mentioned earlier, actual repair costs can differ based on factors like location, shop rates, and the extent of the repairs needed. It's recommended to consult with a professional mechanic or service center for a more accurate estimate.
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Frequently Asked Questions about P3402 2016 Chevrolet Silverado Code
1. What does the OBDII code P3402 mean on a 2016 Chevrolet Silverado?
P3402 indicates a performance issue with the Cylinder 1 Deactivation Solenoid Valve, which is part of the Active Fuel Management (AFM) system that deactivates certain cylinders to improve fuel efficiency.
2. What are the common symptoms of code P3402 in a 2016 Chevrolet Silverado?
Symptoms may include an illuminated Check Engine Light, reduced engine performance, rough idling, poor fuel economy, or noticeable engine misfires.
3. What causes the P3402 code to appear?
Common causes include a faulty Cylinder 1 Deactivation Solenoid, low or dirty engine oil, clogged oil passages, wiring or connector issues, or a malfunctioning Powertrain Control Module (PCM).
4. Can low engine oil cause P3402 on a 2016 Chevrolet Silverado?
Yes, low or dirty engine oil can cause P3402 because the AFM system relies on proper oil pressure to operate the cylinder deactivation solenoids.
5. How do you diagnose the P3402 code?
Diagnosis typically involves checking the engine oil level and quality, inspecting the Cylinder 1 Deactivation Solenoid and its wiring, testing oil pressure, and using a scan tool to monitor AFM system operation.
6. Is it safe to drive with the P3402 code on a 2016 Chevrolet Silverado?
While driving with P3402 may not immediately damage the engine, it can lead to reduced performance, lower fuel efficiency, and potential long-term engine damage if left unresolved.
7. How do you fix the P3402 error code?
Repairs may include replacing the Cylinder 1 Deactivation Solenoid, cleaning or replacing clogged oil passages, performing an oil change with the correct oil grade, or repairing damaged wiring or connectors.
8. Can the P3402 code be related to a software issue?
Yes, in some cases, a PCM software update may be required to resolve a recurring P3402 code, especially if all mechanical components are functioning properly.
9. What tools are needed to troubleshoot the P3402 code?
Tools include an OBDII scan tool, a multimeter for electrical testing, an oil pressure gauge, and basic hand tools for inspecting and replacing components.
10. How much does it cost to fix the P3402 code on a 2016 Chevrolet Silverado?
Repair costs vary but may range from $100 to $300 for parts and labor, depending on whether the solenoid, oil system, or wiring needs attention.
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