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P3443 2014 Chevrolet Silverado Code - Cylinder 6 Deactivation Solenoid Valve Control Circuit Low Voltage

Quick Answer

The P3443 diagnostic trouble code (DTC) indicates an issue with the Cylinder 6 Deactivation Solenoid Valve Control Circuit in a 2014 Chevrolet Silverado. Common causes include Faulty Cylinder 6 Deactivation Solenoid Valve, Wiring issues or damaged connectors in the control circuit, Low engine oil level or poor oil quality. 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
P3443 2014 Chevrolet Silverado indicates Cylinder 6 Deactivation Solenoid Valve Control Circuit Low Voltage.
Common causes
Common causes include Faulty Cylinder 6 Deactivation Solenoid Valve, Wiring issues or damaged connectors in the control circuit, Low engine oil level or poor oil quality.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P3443 2014 Chevrolet Silverado Description

The P3443 diagnostic trouble code (DTC) indicates an issue with the Cylinder 6 Deactivation Solenoid Valve Control Circuit in a 2014 Chevrolet Silverado. This code specifically points to a low voltage condition in the control circuit of the solenoid valve responsible for activating and deactivating cylinder 6 in the engine. The cylinder deactivation system is designed to improve fuel efficiency by shutting off specific cylinders when they are not needed, such as during light load conditions.

OBDII Code P3443 2014 Chevrolet Silverado - Cylinder 6 Deactivation Solenoid Valve Control Circuit Low Voltage
P3443 2014 Chevrolet Silverado Code - Cylinder 6 Deactivation Solenoid Valve Control Circuit Low Voltage

Common Causes of P3443 2014 Chevrolet Silverado

  1. Faulty Cylinder 6 Deactivation Solenoid Valve
  2. Wiring issues or damaged connectors in the control circuit
  3. Low engine oil level or poor oil quality
  4. Electrical problems such as blown fuses or relays
  5. Software glitches in the engine control module

Symptoms of P3443 2014 Chevrolet Silverado

  1. Rough engine operation
  2. Engine misfires
  3. Reduced power output
  4. Check Engine Light illuminated
  5. Increased fuel consumption

How to Fix P3443 2014 Chevrolet Silverado

  1. Begin by inspecting the wiring and connectors in the Cylinder 6 Deactivation Solenoid Valve Control Circuit for any damage or corrosion. Repair or replace any faulty wiring or connectors.
  2. Check the engine oil level and quality, ensuring that it meets the manufacturer's specifications. Top up or change the oil if necessary.
  3. Test the Cylinder 6 Deactivation Solenoid Valve for proper operation. Replace the solenoid valve if it is found to be faulty.
  4. Scan the vehicle's computer system for any stored fault codes and clear them after completing the repairs. Test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P3443 2014 Chevrolet Silverado

The typical repair costs for addressing a Cylinder 6 Deactivation Solenoid Valve Control Circuit Low Voltage issue in a 2014 Chevrolet Silverado can range from $200 to $500, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's recommended to inquire about local rates for a more accurate estimate before proceeding with the repair.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P3443 2014 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P3443 in a 2014 Chevrolet Silverado?

Symptoms may include engine misfires, rough idling, reduced power, and the Check Engine light illuminating on the dashboard.

2. What does the OBDII code P3443 indicate specifically for a 2014 Chevrolet Silverado?

P3443 indicates a problem with the Cylinder 6 Deactivation Solenoid Valve Control Circuit, specifically low voltage detected in the circuit.

3. What are the possible causes of OBDII code P3443 in a 2014 Chevrolet Silverado?

Potential causes include a faulty solenoid valve, damaged wiring or connectors in the control circuit, low engine oil level, or issues with the engine control module.

4. How can I diagnose the Cylinder 6 Deactivation Solenoid Valve Control Circuit for low voltage in a 2014 Chevrolet Silverado?

Diagnosis involves inspecting the wiring and connectors for damage, checking the solenoid valve's operation, testing for proper voltage levels, and scanning the engine control module for related trouble codes.

5. Can I continue driving my 2014 Chevrolet Silverado with OBDII code P3443 present?

It is not recommended to drive with this code active, as it can lead to engine performance issues and potential damage if left unresolved. Seek professional diagnosis and repair promptly.

6. How can I repair OBDII code P3443 in my 2014 Chevrolet Silverado?

Repair options may include replacing the Cylinder 6 Deactivation Solenoid Valve, repairing damaged wiring or connectors, correcting low engine oil levels, or reprogramming the engine control module.

7. Is it possible to reset the OBDII code P3443 in a 2014 Chevrolet Silverado without fixing the underlying issue?

While clearing the code may temporarily turn off the Check Engine light, the problem causing P3443 will persist. It's crucial to address the root cause to prevent further issues.

8. Can a DIY enthusiast fix OBDII code P3443 in a 2014 Chevrolet Silverado?

While some tasks like checking wiring connections can be DIY-friendly, diagnosing and repairing solenoid valve or control module issues may require advanced tools and expertise best left to professionals.

9. How much does it typically cost to repair OBDII code P3443 in a 2014 Chevrolet Silverado?

Costs can vary based on the specific cause of the code, parts needed for replacement, and labor rates. It's advisable to obtain quotes from reputable mechanics or dealerships for an accurate estimate.

10. Does addressing OBDII code P3443 improve fuel efficiency in a 2014 Chevrolet Silverado?

Resolving P3443 can help restore proper engine function, potentially improving fuel efficiency that may have been impacted by the cylinder deactivation solenoid valve issue.

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