Engine-CodesGMC – P2825 GMC

P2825 GMC Code - Transmission Control Solenoid Valve 9 Performance

Quick Answer

The P2825 GMC code indicates an issue with Transmission Control Solenoid Valve 9 Performance. Common causes include Faulty transmission control solenoid valve, Low transmission fluid levels or dirty transmission fluid, Electrical issues such as wiring harness problems or a faulty 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
P2825 GMC indicates Transmission Control Solenoid Valve 9 Performance.
Common causes
Common causes include Faulty transmission control solenoid valve, Low transmission fluid levels or dirty transmission fluid, Electrical issues such as wiring harness problems or a faulty 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.
Table of contents Created and updated by William Orellana on Aug 19, 2024
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Code P2825 GMC Description

The P2825 GMC code indicates an issue with Transmission Control Solenoid Valve 9 Performance. This means that the transmission control module has detected a problem with the performance of the solenoid valve responsible for controlling the flow of transmission fluid in the ninth gear. The solenoid valve plays a crucial role in shifting gears smoothly and efficiently. If this valve is not functioning properly, it can lead to erratic shifting, rough gear changes, and even transmission slipping.

OBDII Code P2825 GMC - Transmission Control Solenoid Valve 9 Performance
P2825 GMC Code - Transmission Control Solenoid Valve 9 Performance

Common Causes of P2825 GMC

  1. Faulty transmission control solenoid valve
  2. Low transmission fluid levels or dirty transmission fluid
  3. Electrical issues such as wiring harness problems or a faulty transmission control module
  4. Mechanical problems within the transmission
  5. Overheating of the transmission

Symptoms of P2825 GMC

  1. Erratic shifting or shifting delays
  2. Harsh or rough gear changes
  3. Transmission slipping
  4. Decreased fuel efficiency
  5. Illumination of the Check Engine Light

How to Fix P2825 GMC

  1. Begin by diagnosing the specific cause of the issue using a scan tool to read the code and perform additional tests if necessary.
  2. Inspect the transmission control solenoid valve and replace it if it is found to be faulty.
  3. Check and top up transmission fluid levels if low, or perform a transmission fluid flush if it is dirty.
  4. Inspect the wiring harness and connections for any damage or corrosion, repairing or replacing as needed.
  5. If the issue persists, further diagnostic tests may be required to pinpoint the exact cause, such as testing the transmission control module or internal transmission components.

Cost to Fix P2825 GMC

The cost of repairing a Transmission Control Solenoid Valve 9 Performance issue can vary depending on the specific cause of the problem. On average, you can expect to pay between $150 to $500 for parts and labor. However, prices may vary based on the location of the repair shop, the make and model of the vehicle, and the severity of the issue. It is recommended to consult with a professional mechanic to get an accurate estimate tailored to your situation.

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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.

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