AutoCodes – GMC – P2764 2014 GMC Sierra

P2764 2014 GMC Sierra Code - Torque Converter Clutch Pressure Control Solenoid Valve Control Circuit Low Voltage

Quick Answer

The Torque Converter Clutch (TCC) pressure control solenoid is part of the control solenoid valve assembly which has no serviceable parts. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Control Solenoid Valve Assembly. 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 2014 GMC Sierra indicates Torque Converter Clutch Pressure Control Solenoid Valve Control Circuit Low Voltage.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Control Solenoid Valve Assembly.
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 Popularity 217

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 25, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2764 2014 GMC Sierra Description

The Torque Converter Clutch (TCC) pressure control solenoid is part of the control solenoid valve assembly which has no serviceable parts. The normally low TCC pressure control solenoid regulates oil pressure to the TCC regulator valve and TCC control valve. Increasing TCC pressure control solenoid oil pressure increases oil pressure to the torque converter to apply the clutch. The Transmission Control Module (TCM) varies the current to the TCC pressure control solenoid through a low-side driver. Increasing current to the TCC pressure control solenoid increases oil pressure by closing OFF the solenoid exhaust port. Decreasing current to the TCC pressure control solenoid decreases oil pressure by opening up the solenoid exhaust port. The TCC pressure control solenoid power is supplied by the Transmission Control Module through a high-side driver. The high-side driver protects the circuit and components from excessive current flow. If excessive current flow is detected, the high side driver will turn OFF. When the fault is corrected, the high-side driver will reset.
The Diagnostic Trouble Code (DTC) will be set when the Transmission Control Module detects a short to ground on the TCC pressure control solenoid valve control circuit for 1 s.

OBDII Code P2764 2014 GMC Sierra - Torque Converter Clutch Pressure Control Solenoid Valve Control Circuit Low Voltage - AutoCodes.com — P2764 2014 GMC Sierra Code - Torque Converter Clutch Pressure Control Solenoid Valve Control Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2764 2014 GMC Sierra?

Low transmission fluid level
Dirty transmission fluid
Faulty Control Solenoid Valve Assembly
Control Solenoid Valve Assembly harness or connectors
Control Solenoid Valve Assembly circuit is open or shorted

How to Fix the DTC P2764 2014 GMC Sierra?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2764 2014 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P2764 2014 GMC Sierra code?

Need more information on how to fix the P2764 2014 GMC Sierra code? Get Access to Factory Service Manuals

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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 2014 GMC Sierra Code

What does the OBDII code P2764 indicate on a 2014 GMC Sierra?

The P2764 code indicates that the Torque Converter Clutch (TCC) Pressure Control Solenoid Valve Control Circuit has low voltage. This solenoid helps manage the hydraulic pressure that controls the torque converter clutch.

What are common symptoms of code P2764 in a 2014 GMC Sierra?

Symptoms of code P2764 may include poor fuel economy, the engine stalling at stops, the transmission slipping, shuddering or overheating, and the Check Engine Light turning on.

What can cause the P2764 code to appear on a 2014 GMC Sierra?

Causes for the P2764 code can include a faulty TCC pressure control solenoid, low transmission fluid levels, dirty or contaminated transmission fluid, or electrical issues such as shorted or corroded wiring and connectors in the control circuit.

How can I troubleshoot and repair the P2764 code on a 2014 GMC Sierra?

To repair the P2764 code, start by checking the transmission fluid level and condition, replacing if itâ€™s dirty or burnt. Inspect the wiring and connectors for damage or corrosion and replace or repair as necessary. If issues persist, test the TCC pressure control solenoid and replace it if faulty.

Is it safe to drive a 2014 GMC Sierra with the P2764 code?

Driving with the P2764 code may lead to further transmission damage or vehicle stalling, which can be unsafe. It is advisable to address the issue promptly to avoid potential safety risks and more costly repairs.

How does a technician diagnose the P2764 code in a 2014 GMC Sierra?

A technician will typically start by scanning the vehicleâ€™s computer system for codes and reviewing the freeze frame data. They will then check the transmission fluid, inspect the electrical connections and wiring to the TCC solenoid, and may conduct solenoid and circuit resistance tests to diagnose the issue effectively.

What are the potential consequences of ignoring the P2764 code in a 2014 GMC Sierra?

Ignoring the P2764 code can lead to the torque converter or transmission failing to function properly. This can increase the risk of a breakdown and potentially require expensive repairs like a complete transmission rebuild.