P0979 2014 Chevrolet Silverado Code - Shift Solenoid Valve 3 Control Circuit Low Voltage
Quick Answer
The P0979 code on a 2014 Chevrolet Silverado indicates a problem with the Shift Solenoid Valve 3 Control Circuit, specifically a low voltage condition. Common causes include Faulty Shift Solenoid Valve 3, Damaged wiring or connectors in the control circuit, Issues with the transmission control module. 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
- P0979 2014 Chevrolet Silverado indicates Shift Solenoid Valve 3 Control Circuit Low Voltage.
- Common causes
- Common causes include Faulty Shift Solenoid Valve 3, Damaged wiring or connectors in the control circuit, Issues with the transmission control module.
- 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 P0979 2014 Chevrolet Silverado Description
The P0979 code on a 2014 Chevrolet Silverado indicates a problem with the Shift Solenoid Valve 3 Control Circuit, specifically a low voltage condition. This solenoid is responsible for controlling the flow of transmission fluid to engage and disengage specific gears within the transmission. When the control circuit is experiencing low voltage, it can lead to issues with gear shifting, causing the vehicle to have difficulty accelerating, shifting gears, or maintaining speed.
Common Causes of P0979 2014 Chevrolet Silverado
- Faulty Shift Solenoid Valve 3
- Damaged wiring or connectors in the control circuit
- Issues with the transmission control module
- Low transmission fluid levels or dirty fluid
- Electrical problems such as a blown fuse or relay
Symptoms of P0979 2014 Chevrolet Silverado
- Delayed or harsh shifting between gears
- Transmission slipping or not engaging properly
- Loss of power or acceleration
- Illumination of the Check Engine Light
- Reduced fuel efficiency
How to Fix P0979 2014 Chevrolet Silverado
- Begin by conducting a thorough diagnostic scan to confirm the P0979 code and pinpoint the exact cause of the issue.
- Inspect the wiring and connectors related to the Shift Solenoid Valve 3 Control Circuit for any signs of damage or corrosion. Repair or replace as necessary.
- Test the Shift Solenoid Valve 3 for proper function and replace if found to be faulty.
- Check the transmission control module for any errors or malfunctions. Reset or replace if needed.
- Clear the trouble code from the vehicle's computer system and test drive to ensure the issue has been resolved.
Cost to Fix P0979 2014 Chevrolet Silverado
The typical repair costs for addressing a P0979 code on a 2014 Chevrolet Silverado can range from $150 to $500, depending on the specific cause of the issue and the cost of parts and labor in your area. Keep in mind that additional diagnostic time and labor charges may apply, so it's advisable to consult with a trusted auto repair shop for a more accurate estimate based on your vehicle's needs.
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Frequently Asked Questions about P0979 2014 Chevrolet Silverado Code
1. What does the OBDII code P0979 mean on a 2014 Chevrolet Silverado?
P0979 indicates a "Shift Solenoid Valve 3 Control Circuit Low Voltage," meaning the PCM has detected an electrical issue in the circuit controlling shift solenoid 3.
2. What are the common symptoms of code P0979 in a 2014 Chevrolet Silverado?
Symptoms may include difficulty shifting gears, harsh or delayed shifting, transmission stuck in one gear, or the check engine light coming on.
3. What causes the P0979 code to appear on a 2014 Chevrolet Silverado?
Common causes include damaged wiring or connectors in the shift solenoid circuit, a faulty shift solenoid, a failing PCM, or low transmission fluid.
4. How do I diagnose the P0979 code on my 2014 Chevrolet Silverado?
Start by inspecting the wiring and connectors for damage or corrosion, checking the transmission fluid level, and testing the shift solenoid for proper operation using a multimeter.
5. Can I drive my 2014 Chevrolet Silverado with a P0979 code?
Driving with this code is not recommended, as it may lead to transmission damage or unsafe driving conditions due to improper gear shifting.
6. How can I fix the P0979 code on a 2014 Chevrolet Silverado?
Repairs may include replacing damaged wiring or connectors, replacing the shift solenoid, refilling or replacing transmission fluid, or reprogramming/repairing the PCM if necessary.
7. How much does it typically cost to fix a P0979 code on a 2014 Chevrolet Silverado?
Repair costs can range from $150 to $500 or more, depending on whether the issue is related to wiring, the shift solenoid, or the PCM.
8. What tools are needed to fix the P0979 code on a 2014 Chevrolet Silverado?
Basic tools include a multimeter for electrical testing, a code scanner, and possibly a transmission fluid dipstick or pan removal tools for fluid inspection.
9. Can low transmission fluid cause the P0979 code on a 2014 Chevrolet Silverado?
Yes, low or dirty transmission fluid can cause improper solenoid operation, leading to the P0979 code.
10. Will clearing the code with a scanner fix the P0979 issue on a 2014 Chevrolet Silverado?
Clearing the code may temporarily remove the check engine light, but the underlying issue must be repaired to prevent the code from returning.
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