Engine-CodesGMC – P0968 2018 GMC Sierra

P0968 2018 GMC Sierra Code - Pressure Control Solenoid Valve 3 Control Circuit Open

Quick Answer

The diagnostic trouble code P0968 for a 2018 GMC Sierra indicates a problem with the Pressure Control Solenoid Valve 3 control circuit being open. Common causes include Corroded or damaged wiring, Loose or poor connections, Faulty solenoid valve. 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
P0968 2018 GMC Sierra indicates Pressure Control Solenoid Valve 3 Control Circuit Open.
Common causes
Common causes include Corroded or damaged wiring, Loose or poor connections, Faulty solenoid valve.
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 13, 2024
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Code P0968 2018 GMC Sierra Description

The diagnostic trouble code P0968 for a 2018 GMC Sierra indicates a problem with the Pressure Control Solenoid Valve 3 control circuit being open. This valve is a crucial component of the transmission system, responsible for regulating hydraulic pressure to ensure smooth gear shifts. When the control circuit is open, it means that there is a break or interruption in the electrical connection between the solenoid valve and the vehicle's computer system.

OBDII Code P0968 2018 GMC Sierra - Pressure Control Solenoid Valve 3 Control Circuit Open
P0968 2018 GMC Sierra Code - Pressure Control Solenoid Valve 3 Control Circuit Open

Common Causes of P0968 2018 GMC Sierra

  1. Corroded or damaged wiring
  2. Loose or poor connections
  3. Faulty solenoid valve
  4. Damaged wire harness
  5. Electrical system issues

Symptoms of P0968 2018 GMC Sierra

  1. Erratic shifting or harsh gear changes
  2. Slipping transmission
  3. Inability to shift gears
  4. Limp mode activation
  5. Illumination of the Check Engine Light

How to Fix P0968 2018 GMC Sierra

  1. Begin by conducting a visual inspection of the wiring, connectors, and solenoid valve to check for any visible damage or corrosion.
  2. Use a multimeter to test the continuity of the wiring and check for any open circuits.
  3. Test the solenoid valve for proper operation and resistance values.
  4. Replace any damaged wiring, connectors, or the solenoid valve as needed.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0968 2018 GMC Sierra

The cost of repairing a Pressure Control Solenoid Valve 3 Control Circuit Open issue can vary depending on the extent of the damage and the specific parts that need replacement. On average, the parts for this repair can range from $100 to $300, while the labor costs can be between $150 and $300. Therefore, the total repair cost could be anywhere from $250 to $600. It's important to note that these are rough estimates, and actual costs may differ based on various factors such as location, labor rates, and the availability of parts. It's recommended to consult with a qualified mechanic or repair shop for a more accurate cost assessment.

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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.

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