Engine-CodesGMC – P1425 2015 GMC Sierra

P1425 2015 GMC Sierra Code - Intake Air Flow Valve Control Motor High Temperature

Quick Answer

The P1425 diagnostic trouble code (DTC) for a 2015 GMC Sierra refers to an issue with the Intake Air Flow Valve Control Motor High Temperature. Common causes include Faulty intake air flow valve control motor, Electrical issues or wiring problems, Overheating of the engine. 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
P1425 2015 GMC Sierra indicates Intake Air Flow Valve Control Motor High Temperature.
Common causes
Common causes include Faulty intake air flow valve control motor, Electrical issues or wiring problems, Overheating of the engine.
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 12, 2024
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Code P1425 2015 GMC Sierra Description

The P1425 diagnostic trouble code (DTC) for a 2015 GMC Sierra refers to an issue with the Intake Air Flow Valve Control Motor High Temperature. This code indicates that there is a problem with the control motor that manages the intake air flow in the vehicle's engine. The intake air flow valve control motor is responsible for adjusting the amount of air entering the engine, which is crucial for the combustion process. When the control motor operates at high temperatures, it can lead to various performance issues and potentially cause damage to the engine.

OBDII Code P1425 2015 GMC Sierra - Intake Air Flow Valve Control Motor High Temperature
P1425 2015 GMC Sierra Code - Intake Air Flow Valve Control Motor High Temperature

Common Causes of P1425 2015 GMC Sierra

  1. Faulty intake air flow valve control motor
  2. Electrical issues or wiring problems
  3. Overheating of the engine
  4. Clogged or dirty air filter
  5. Vacuum leaks in the intake system

Symptoms of P1425 2015 GMC Sierra

  1. Decreased engine performance
  2. Reduced fuel economy
  3. Rough idling or engine misfires
  4. Engine stalling
  5. Illumination of the check engine light

How to Fix P1425 2015 GMC Sierra

  1. Begin by diagnosing the issue using a scan tool to confirm the P1425 code and identify the specific problem with the intake air flow valve control motor.
  2. Inspect the control motor, wiring, and electrical connections for any signs of damage, corrosion, or loose connections.
  3. Test the intake air flow valve control motor to ensure it is functioning properly and replace it if necessary.
  4. Check the air filter and intake system for any obstructions or dirt that could be affecting air flow.
  5. Clear the diagnostic trouble codes from the vehicle's computer and test drive the vehicle to confirm that the issue has been resolved.

Cost to Fix P1425 2015 GMC Sierra

The typical repair costs for addressing a P1425 code on a 2015 GMC Sierra can vary depending on the specific cause of the issue and the cost of parts and labor. In general, replacing the intake air flow valve control motor and addressing any related issues may range from $200 to $500. It is important to note that diagnosis time and labor rates at auto repair shops can vary, so it is advisable to check with local shops for a more accurate estimate. Additionally, factors such as the vehicle make and model, engine type, and location can also influence repair costs.

Tech Notes for P1425 2015 GMC Sierra









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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.

Frequently Asked Questions about P1425 2015 GMC Sierra Code

What does the OBDII code P1425 mean on a 2015 GMC Sierra?

P1425 indicates that the Intake Air Flow Valve Control Motor has detected a high temperature condition, which may affect the operation of the air intake system.

What are the common symptoms of code P1425 on a 2015 GMC Sierra?

Symptoms include reduced engine performance, rough idling, poor fuel efficiency, and possibly the illumination of the check engine light.

What causes the P1425 code to appear on a 2015 GMC Sierra?

Common causes include a malfunctioning intake air flow valve control motor, electrical issues such as damaged wiring or connectors, or excessive heat affecting the motor.

Can I drive my 2015 GMC Sierra with the P1425 code?

Driving with this code is not recommended, as it may lead to reduced engine performance and potential damage to other components if the issue is not addressed.

How do I diagnose the P1425 code on a 2015 GMC Sierra?

Diagnosis involves checking the intake air flow valve control motor for damage, inspecting the wiring and connectors for shorts or corrosion, and using a scan tool to monitor the system.

What tools are needed to fix the P1425 code on a 2015 GMC Sierra?

You may need a multimeter, a scan tool, basic hand tools, and possibly a replacement intake air flow valve control motor.

How much does it cost to repair the P1425 code on a 2015 GMC Sierra?

Repair costs vary, but replacing the intake air flow valve control motor typically ranges from $200 to $500, including parts and labor.

Can the P1425 code be caused by a bad sensor?

While this code is specifically related to the intake air flow valve control motor, a faulty sensor in the air intake system could indirectly contribute to the issue.

How can I prevent the P1425 code from occurring on my 2015 GMC Sierra?

Regular maintenance, including inspecting and cleaning the air intake system and ensuring proper electrical connections, can help prevent this code.

Is the P1425 code related to any other codes on a 2015 GMC Sierra?

Yes, it may be accompanied by other codes related to the air intake system or motor control circuitry, which can provide additional clues for diagnosis.

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