P0797 GMC Code - Pressure Control Solenoid Valve 3 Stuck On
Quick Answer
The P0797 diagnostic trouble code (DTC) for GMC vehicles refers to an issue with the Pressure Control Solenoid Valve 3 being stuck on. Common causes include Faulty Pressure Control Solenoid Valve 3, Wiring harness issues, 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
- P0797 GMC indicates Pressure Control Solenoid Valve 3 Stuck On.
- Common causes
- Common causes include Faulty Pressure Control Solenoid Valve 3, Wiring harness issues, 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.
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Code P0797 GMC Description
The P0797 diagnostic trouble code (DTC) for GMC vehicles refers to an issue with the Pressure Control Solenoid Valve 3 being stuck on. This solenoid valve is a crucial component of the transmission system, responsible for controlling the hydraulic pressure within the transmission. When this valve is stuck in the open position, it can lead to a variety of problems that can affect the vehicle's performance and overall drivability.
Common Causes of P0797 GMC
- Faulty Pressure Control Solenoid Valve 3
- Wiring harness issues
- Malfunctioning transmission control module
- Blocked valve body passage
- Stuck valve or damaged transmission pump
Symptoms of P0797 GMC
- Harsh shifting or jerking when changing gears
- Delayed engagement when shifting from park to drive or reverse
- Transmission slipping or hesitation
- Limp mode activation, limiting vehicle speed and performance
How to Fix P0797 GMC
- Perform a diagnostic scan to confirm the P0797 code and identify the specific issue.
- Inspect the wiring harness and connections for any damage or corrosion.
- Test the Pressure Control Solenoid Valve 3 for proper operation and replace if necessary.
- Check the valve body and transmission pump for any blockages or damage and address as needed.
- Clear the code and test drive the vehicle to ensure proper transmission operation.
Cost to Fix P0797 GMC
The typical repair costs for addressing the P0797 code can vary depending on the extent of the issue and the specific repairs needed. On average, the parts for a new Pressure Control Solenoid Valve 3 can range from $100 to $300, while labor costs can range from $200 to $400. Additional costs may apply if other components need to be replaced or if further diagnostics are required.
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Information for Specific GMC Models
- P0797 2014 GMC Sierra — Pressure Control Solenoid Valve 3 Stuck On
- P0797 2015 GMC Sierra — Pressure Control Solenoid Valve 3 Stuck On
- P0797 2016 GMC Sierra — Pressure Control Solenoid Valve 3 Stuck On
- P0797 2017 GMC Sierra — Pressure Control Solenoid Valve 3 Stuck On
- P0797 2018 GMC Sierra — Pressure Control Solenoid Valve 3 Stuck On
Frequently Asked Questions about P0797 GMC Code
What are the common symptoms of OBDII code P0797 GMC?
- Common symptoms of OBDII code P0797 GMC, "Pressure Control Solenoid Valve 3 Stuck On," may include harsh shifting, transmission slipping, poor fuel economy, and the Check Engine light being illuminated.
What are the possible causes of OBDII code P0797 GMC?
- Possible causes of OBDII code P0797 GMC include a faulty pressure control solenoid valve, low transmission fluid level, dirty transmission fluid, electrical issues, or a problem with the transmission control module.
How serious is OBDII code P0797 GMC?
- OBDII code P0797 GMC can lead to drivability issues and potential damage to the transmission if left unresolved. It is recommended to address this code promptly to prevent further damage.
How can I diagnose OBDII code P0797 GMC?
- Diagnosing OBDII code P0797 GMC typically involves using a scan tool to retrieve the code, checking the transmission fluid level and condition, inspecting the pressure control solenoid valve, and performing electrical tests to pinpoint the issue.
Can I still drive my vehicle with OBDII code P0797 GMC?
- It is not recommended to drive your vehicle extensively with OBDII code P0797 GMC, as it can cause further damage to the transmission. It is best to have the issue diagnosed and repaired as soon as possible.
How can OBDII code P0797 GMC be repaired?
- Repairing OBDII code P0797 GMC may involve replacing the pressure control solenoid valve, performing a transmission fluid flush and filter replacement, addressing any electrical issues, or reprogramming the transmission control module.
Is OBDII code P0797 GMC a common problem in GMC vehicles?
- OBDII code P0797 GMC, related to the Pressure Control Solenoid Valve 3 being stuck on, can be a common issue in GMC vehicles with automatic transmissions, especially in models that have higher mileage or have not been well-maintained.
Can low transmission fluid cause OBDII code P0797 GMC?
- Yes, low transmission fluid can cause OBDII code P0797 GMC to trigger, as the pressure control solenoid valve relies on proper fluid levels to function correctly. It is essential to regularly check and maintain proper transmission fluid levels.
Should I attempt to repair OBDII code P0797 GMC myself?
- While some DIY enthusiasts may be able to address simple causes of OBDII code P0797 GMC, such as checking the transmission fluid level, it is recommended to have a professional diagnose and repair this code to prevent further transmission damage.
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