Engine-CodesGMC – P2764 2017 GMC Sierra

P2764 2017 GMC Sierra Code - Torque Converter Clutch Pressure Control Solenoid Valve Control Circuit Low Voltage

Quick Answer

The P2764 diagnostic trouble code for a 2017 GMC Sierra refers to the Torque Converter Clutch Pressure Control Solenoid Valve Control Circuit Low Voltage. Common causes include Damaged wiring or connectors in the control circuit, Faulty torque converter clutch pressure control solenoid valve, Malfunctioning 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
P2764 2017 GMC Sierra indicates Torque Converter Clutch Pressure Control Solenoid Valve Control Circuit Low Voltage.
Common causes
Common causes include Damaged wiring or connectors in the control circuit, Faulty torque converter clutch pressure control solenoid valve, Malfunctioning 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.
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P2764 2017 GMC Sierra Description

The P2764 diagnostic trouble code for a 2017 GMC Sierra refers to the Torque Converter Clutch Pressure Control Solenoid Valve Control Circuit Low Voltage. This code indicates a problem with the control circuit that manages the torque converter clutch pressure solenoid valve. The torque converter clutch is a critical component in the automatic transmission system that helps improve fuel efficiency and overall performance by reducing slippage between the engine and transmission. The pressure control solenoid valve is responsible for regulating the pressure of the torque converter clutch, allowing it to engage and disengage as needed during driving.

OBDII Code P2764 2017 GMC Sierra - Torque Converter Clutch Pressure Control Solenoid Valve Control Circuit Low Voltage
P2764 2017 GMC Sierra Code - Torque Converter Clutch Pressure Control Solenoid Valve Control Circuit Low Voltage

Common Causes of P2764 2017 GMC Sierra

  1. Damaged wiring or connectors in the control circuit
  2. Faulty torque converter clutch pressure control solenoid valve
  3. Malfunctioning transmission control module
  4. Low battery voltage affecting the solenoid operation
  5. Issues with the vehicle's alternator affecting voltage supply

Symptoms of P2764 2017 GMC Sierra

  1. Rough or harsh shifting
  2. Decreased fuel efficiency
  3. Transmission slipping
  4. Delayed engagement when shifting gears
  5. Transmission overheating

How to Fix P2764 2017 GMC Sierra

  1. Consult the vehicle's service manual to locate the torque converter clutch pressure control solenoid valve and its control circuit.
  2. Inspect the wiring and connectors for any signs of damage or corrosion. Repair or replace as necessary.
  3. Test the solenoid valve for proper functionality using a multimeter. Replace if found to be faulty.
  4. Check the transmission control module for any fault codes and reset if needed.
  5. Perform a test drive to ensure the torque converter clutch engages properly and the symptoms have been resolved.

Cost to Fix P2764 2017 GMC Sierra

The cost estimate for repairing the Torque Converter Clutch Pressure Control Solenoid Valve Control Circuit Low Voltage issue can vary depending on the specific cause and the extent of the damage. On average, the parts for this repair can range from $100 to $300, while the labor costs can range from $150 to $400. Overall, the total repair cost can be expected to be between $250 and $700. Keep in mind that these are rough estimates, and actual costs may vary based on the location, make and model of the vehicle, and the labor rates charged by auto repair shops. It is recommended to obtain quotes from multiple shops to compare prices and ensure a fair deal.

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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 P2764 2017 GMC Sierra Code

1. What does the OBDII code P2764 mean on a 2017 GMC Sierra?

P2764 indicates a "Torque Converter Clutch Pressure Control Solenoid Valve Control Circuit Low Voltage," meaning there’s an electrical issue in the solenoid circuit responsible for controlling the torque converter clutch.

2. What are the symptoms of the P2764 code in a 2017 GMC Sierra?

Common symptoms include delayed or harsh shifting, decreased fuel efficiency, transmission slipping, or the vehicle staying in a single gear (limp mode). The check engine light will also be illuminated.

3. What causes the P2764 code to appear in a 2017 GMC Sierra?

Potential causes include a faulty torque converter clutch solenoid, damaged or corroded wiring or connectors in the solenoid circuit, a failing transmission control module (TCM), or low transmission fluid levels.

4. Can I still drive my 2017 GMC Sierra with the P2764 code?

While the vehicle may still be drivable, continued operation with this code can lead to further transmission damage. It’s best to address the issue promptly to avoid costly repairs.

5. How do I diagnose the P2764 code on a 2017 GMC Sierra?

Diagnosis involves checking the transmission fluid level and condition, inspecting the wiring and connectors for damage, testing the solenoid with a multimeter, and scanning for additional transmission-related codes.

6. How can the P2764 code be fixed on a 2017 GMC Sierra?

Repairs may include replacing the torque converter clutch solenoid, repairing damaged wiring or connectors, updating or reprogramming the TCM, or replenishing and flushing the transmission fluid.

7. Could low transmission fluid cause the P2764 code in a 2017 GMC Sierra?

Yes, low or contaminated transmission fluid can lead to improper solenoid operation, which may trigger the P2764 code.

8. How much does it cost to fix the P2764 code on a 2017 GMC Sierra?

Repair costs can vary widely but may range from $200–$500 for solenoid replacement and up to $1,000 or more if significant transmission work is needed.

9. Can a bad transmission control module (TCM) trigger the P2764 code?

Yes, a malfunctioning TCM can fail to properly control the solenoid circuit, resulting in the P2764 code.

10. Is a software update needed to fix the P2764 code on a 2017 GMC Sierra?

In some cases, a TCM software update may resolve the issue if the problem is due to programming errors rather than hardware failure.

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