P2764 2018 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 2018 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.
Code P2764 2018 GMC Sierra Description
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.
What are the Possible Causes of the DTC P2764 2018 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 2018 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 2018 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.
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Frequently Asked Questions about P2764 2018 GMC Sierra Code
1. What does the OBDII code P2764 mean on a 2018 GMC Sierra?
P2764 indicates a "Torque Converter Clutch Pressure Control Solenoid Valve Control Circuit Low Voltage," meaning there is an electrical issue in the circuit controlling the torque converter clutch solenoid.
2. What are the symptoms of a P2764 code on a 2018 GMC Sierra?
Symptoms may include poor fuel efficiency, difficulty shifting gears, transmission slipping, engine stalling at low speeds, and the Check Engine Light being illuminated.
3. What causes the P2764 code to appear on a 2018 GMC Sierra?
Common causes include a faulty torque converter clutch solenoid, damaged or corroded wiring or connectors, a malfunctioning transmission control module (TCM), or low transmission fluid.
4. Can driving with a P2764 code damage my 2018 GMC Sierra?
Yes, driving with this code can cause further damage to the transmission system, reduce fuel efficiency, and lead to unsafe driving conditions if the vehicle stalls.
5. How do I diagnose a P2764 code on my 2018 GMC Sierra?
Start by checking the transmission fluid level and condition, inspecting wiring and connectors for damage or corrosion, and testing the torque converter clutch solenoid and its circuit with a multimeter.
6. What repairs fix the P2764 code on a 2018 GMC Sierra?
Repairs may include replacing the torque converter clutch solenoid, repairing damaged wiring or connectors, updating or reprogramming the TCM, or replacing the TCM if faulty.
7. Is low transmission fluid a possible cause of the P2764 code?
Yes, low or contaminated transmission fluid can cause the torque converter clutch solenoid to malfunction, triggering this code.
8. How much does it cost to fix a P2764 code on a 2018 GMC Sierra?
Repair costs vary but generally range from $200 to $600, depending on whether the issue is with the solenoid, wiring, or TCM.
9. Can a P2764 code cause my GMC Sierra to stall?
Yes, the code can lead to engine stalling, particularly at low speeds, due to improper engagement of the torque converter clutch.
10. Will clearing the P2764 code with a scanner fix the problem?
Clearing the code may temporarily turn off the Check Engine Light, but the underlying issue must be addressed to prevent the code from returning.
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