Engine-CodesGMC – P0507 2016 GMC Sierra

P0507 2016 GMC Sierra Code - Idle Speed High

Quick Answer

The P0507 diagnostic trouble code for a 2016 GMC Sierra indicates that the idle speed of the engine is higher than normal. Common causes include Dirty or malfunctioning idle air control valve, Vacuum leaks in the intake system, Faulty throttle position sensor. 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
P0507 2016 GMC Sierra indicates Idle Speed High.
Common causes
Common causes include Dirty or malfunctioning idle air control valve, Vacuum leaks in the intake system, Faulty throttle position sensor.
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 P0507 2016 GMC Sierra Description

The P0507 diagnostic trouble code for a 2016 GMC Sierra indicates that the idle speed of the engine is higher than normal. The idle speed refers to the rotational speed of the engine when the vehicle is not in motion. When the idle speed is too high, it can lead to various performance issues, such as reduced fuel efficiency, rough idling, and potential stalling. This code is typically triggered when the Engine Control Module (ECM) detects that the idle speed is outside of the specified range.

OBDII Code P0507 2016 GMC Sierra - Idle Speed High
P0507 2016 GMC Sierra Code - Idle Speed High

Common Causes of P0507 2016 GMC Sierra

  1. Dirty or malfunctioning idle air control valve.
  2. Vacuum leaks in the intake system.
  3. Faulty throttle position sensor.
  4. Issues with the mass airflow sensor.
  5. Engine misfire or ignition system problems.

Symptoms of P0507 2016 GMC Sierra

  1. High idle speed when the vehicle is stationary.
  2. Engine racing or revving up and down on its own.
  3. Poor fuel efficiency.
  4. Rough idling or vibrations when the vehicle is stopped.
  5. Potential stalling when coming to a stop.

How to Fix P0507 2016 GMC Sierra

  1. Inspect and clean the idle air control valve.
  2. Check for vacuum leaks in the intake system and repair as needed.
  3. Test and replace the throttle position sensor if faulty.
  4. Inspect and potentially replace the mass airflow sensor.
  5. Address any engine misfire or ignition system issues.

Cost to Fix P0507 2016 GMC Sierra

The cost of repairing a high idle speed issue can vary depending on the specific cause of the problem. In general, the cost of parts for this type of repair could range from $100 to $500, while labor costs could range from $100 to $300. Therefore, the total cost could be anywhere from $200 to $800. It's important to note that these are rough estimates, and actual costs may be higher or lower depending on the specific circumstances. Additionally, factors such as location, vehicle make and model, and labor rates can all impact the final cost of the repair.

Tech Notes for P0507 2016 GMC Sierra

If there are no intake leaks, clean the throttle body, adjust the engine idle, and clear the engine code. If the code persists you must replace the Electric Throttle Actuator Motor (Located in the Throttle Body Assembly).

The Engine Control Module (ECM) learns the idle position of the throttle plate to ensure the correct idle. Anytime the throttle body is cleaned or replaced, the ECM must learn the new throttle position. The idle may be unstable or a DTC may be set if the throttle position is not learned.

Chevrolet Throttle Body Cleaning and Idle Learning Procedure





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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 P0507 2016 GMC Sierra Code

1. What does the OBDII code P0507 mean on a 2016 GMC Sierra?

P0507 indicates that the engine's idle speed is higher than the manufacturer’s specified range.

2. What are the common symptoms of code P0507 in a 2016 GMC Sierra?

Symptoms include a high or fluctuating idle speed, rough idling, poor fuel efficiency, and the Check Engine Light being illuminated.

3. What causes the P0507 code to appear on my 2016 GMC Sierra?

Common causes include a dirty or faulty throttle body, vacuum leaks, a malfunctioning idle air control (IAC) valve, or issues with the PCV (positive crankcase ventilation) system.

4. Can a dirty throttle body trigger code P0507 in a 2016 GMC Sierra?

Yes, carbon buildup in the throttle body can prevent proper airflow control, leading to a high idle and triggering the P0507 code.

5. How can I fix the P0507 code on my 2016 GMC Sierra?

Start by cleaning the throttle body, checking for vacuum leaks, inspecting the idle air control valve, and ensuring the PCV system is functioning properly.

6. Will a vacuum leak cause the P0507 code in a 2016 GMC Sierra?

Yes, a vacuum leak can allow unmetered air into the engine, causing a higher-than-normal idle speed and triggering the P0507 code.

7. Can I drive my 2016 GMC Sierra with the P0507 code?

While the vehicle may still be drivable, driving with this code can lead to poor performance, reduced fuel efficiency, and potential damage to engine components if not addressed.

8. How do I check for vacuum leaks when diagnosing a P0507 code on a 2016 GMC Sierra?

Inspect all vacuum hoses for cracks, disconnections, or damage, and use a smoke test or carb cleaner to identify leaks in hard-to-see areas.

9. What tools are needed to diagnose and fix a P0507 code on a 2016 GMC Sierra?

You may need an OBDII scanner, a throttle body cleaner, basic hand tools, and a smoke machine or carb cleaner to detect vacuum leaks.

10. Can a faulty idle air control (IAC) valve cause the P0507 code on a 2016 GMC Sierra?

Yes, a malfunctioning IAC valve can fail to regulate idle speed properly, resulting in a high idle and triggering the P0507 code.

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