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Engine-Codes – GMC – P0796 GMC

P0796 GMC Code - Pressure Control Solenoid Valve 3 Stuck Off

Quick Answer

The P0796 diagnostic trouble code (DTC) for GMC vehicles specifically refers to an issue with the Pressure Control Solenoid Valve 3 being stuck off. Common causes include Faulty Pressure Control Solenoid Valve 3, Wiring or electrical issues in the transmission control circuit, Low transmission fluid levels or dirty fluid. 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
P0796 GMC indicates Pressure Control Solenoid Valve 3 Stuck Off.
Common causes
Common causes include Faulty Pressure Control Solenoid Valve 3, Wiring or electrical issues in the transmission control circuit, Low transmission fluid levels or dirty fluid.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P0796 GMC Description

The P0796 diagnostic trouble code (DTC) for GMC vehicles specifically refers to an issue with the Pressure Control Solenoid Valve 3 being stuck off. This valve is an essential component of the transmission system, responsible for regulating hydraulic pressure within the transmission. When this solenoid valve fails to function properly or gets stuck in the off position, it can lead to various transmission-related problems.

OBDII Code P0796 GMC - Pressure Control Solenoid Valve 3 Stuck Off
P0796 GMC Code - Pressure Control Solenoid Valve 3 Stuck Off

Common Causes of P0796 GMC

  1. Faulty Pressure Control Solenoid Valve 3
  2. Wiring or electrical issues in the transmission control circuit
  3. Low transmission fluid levels or dirty fluid
  4. Mechanical issues within the transmission
  5. Software or programming issues in the transmission control module

Symptoms of P0796 GMC

  1. Harsh or delayed shifting
  2. Erratic transmission behavior
  3. Transmission overheating
  4. Check engine light illuminated on the dashboard

How to Fix P0796 GMC

  1. Diagnose the issue by using a scan tool to retrieve the trouble code and perform a thorough inspection of the transmission system.
  2. Inspect the Pressure Control Solenoid Valve 3 for any signs of damage or malfunction. Replace the valve if necessary.
  3. Check the wiring and electrical connections in the transmission control circuit for any faults or corrosion. Repair or replace as needed.
  4. Ensure that the transmission fluid level is adequate and the fluid is clean. Perform a transmission fluid flush and refill if necessary.
  5. Clear the trouble code from the vehicle's computer system and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P0796 GMC

The typical repair costs for addressing the P0796 code can vary depending on the specific vehicle make and model, as well as the extent of the issue. On average, the parts required for this repair, such as a new Pressure Control Solenoid Valve 3, can range from $100 to $300. Additionally, labor costs for this repair can range from $200 to $500, based on the hourly rates of auto repair shops.

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Information for Specific GMC Models

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 P0796 GMC Code

1. What are the common symptoms of OBDII code P0796 in a GMC vehicle?

The common symptoms of OBDII code P0796 (Pressure Control Solenoid Valve 3 Stuck Off) in a GMC vehicle include harsh or delayed shifting, transmission slipping, and difficulty engaging gears.

2. What can cause the Pressure Control Solenoid Valve 3 to get stuck off in a GMC vehicle?

The Pressure Control Solenoid Valve 3 can get stuck off in a GMC vehicle due to issues such as a faulty solenoid valve, low transmission fluid level, electrical problems, or internal transmission damage.

3. How serious is OBDII code P0796 in a GMC vehicle?

OBDII code P0796 (Pressure Control Solenoid Valve 3 Stuck Off) in a GMC vehicle is a serious issue that can lead to transmission problems and potential damage if not addressed promptly. It is recommended to have the vehicle diagnosed and repaired as soon as possible.

4. Can I continue to drive my GMC vehicle with OBDII code P0796 present?

It is not recommended to continue driving a GMC vehicle with OBDII code P0796 present, as it can cause further damage to the transmission and lead to costly repairs. It is best to have the issue inspected and repaired by a professional.

5. How can I diagnose OBDII code P0796 in a GMC vehicle?

Diagnosing OBDII code P0796 in a GMC vehicle involves using a scan tool to retrieve the trouble code, checking the transmission fluid level and condition, inspecting the wiring and connections to the solenoid valve, and performing a thorough transmission system check.

6. What are the possible repair options for OBDII code P0796 in a GMC vehicle?

Repair options for OBDII code P0796 in a GMC vehicle may include replacing the Pressure Control Solenoid Valve 3, repairing or replacing damaged wiring or connections, checking and topping up the transmission fluid, or performing a transmission fluid flush and filter replacement.

7. Can a DIY enthusiast fix OBDII code P0796 in a GMC vehicle?

While some DIY enthusiasts may have the skills to address OBDII code P0796 in a GMC vehicle, it is generally recommended to have this issue diagnosed and repaired by a professional mechanic with experience in transmission systems to ensure proper repair and avoid further damage.

8. How much does it typically cost to repair OBDII code P0796 in a GMC vehicle?

The cost to repair OBDII code P0796 in a GMC vehicle can vary depending on the root cause of the issue, the extent of the damage, and labor costs. It is advisable to obtain quotes from reputable mechanics or repair shops for an accurate estimate.

9. Will resetting the OBDII code P0796 clear the issue in a GMC vehicle?

Resetting the OBDII code P0796 may temporarily clear the issue, but if the root cause of the problem is not addressed, the code is likely to reappear. It is important to diagnose and repair the underlying issue to prevent further transmission problems.

10. How can I prevent OBDII code P0796 from occurring in my GMC vehicle?

To prevent OBDII code P0796 in a GMC vehicle, it is recommended to perform regular transmission maintenance, check and maintain proper transmission fluid levels, address any transmission issues promptly, and have the vehicle inspected by a professional at the first sign of trouble.

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