P0507 2018 GMC Sierra Code - Idle Speed High
Quick Answer
The diagnostic trouble code P0507 for a 2018 GMC Sierra indicates that the idle speed of the engine is higher than the specified range set by the manufacturer. Common causes include Faulty idle air control valve, Vacuum leaks in the intake system, Dirty throttle body. 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 2018 GMC Sierra indicates Idle Speed High.
- Common causes
- Common causes include Faulty idle air control valve, Vacuum leaks in the intake system, Dirty throttle body.
- 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 P0507 2018 GMC Sierra Description
The diagnostic trouble code P0507 for a 2018 GMC Sierra indicates that the idle speed of the engine is higher than the specified range set by the manufacturer. This means that the engine is idling at a speed that is higher than normal, which can lead to various performance issues. The idle speed of an engine is controlled by the engine control module (ECM) based on inputs from various sensors. When the idle speed is too high, it can result in poor fuel efficiency, rough idling, increased emissions, and potential damage to engine components over time.
Common Causes of P0507 2018 GMC Sierra
- Faulty idle air control valve.
- Vacuum leaks in the intake system.
- Dirty throttle body.
- Faulty throttle position sensor.
- Issues with the ECM or engine sensors.
Symptoms of P0507 2018 GMC Sierra
- High idle speed when the vehicle is stationary.
- Rough idling or vibrations when the engine is running.
- Reduced fuel efficiency.
- Check Engine Light illuminated on the dashboard.
- Potential stalling when coming to a stop.
How to Fix P0507 2018 GMC Sierra
- Diagnose the issue using a scan tool to check for any stored trouble codes and live data related to the idle speed.
- Inspect the idle air control valve and clean or replace it if necessary.
- Check for vacuum leaks in the intake system and repair any leaks found.
- Clean the throttle body to ensure smooth airflow.
- Test the throttle position sensor and replace it if faulty.
Cost to Fix P0507 2018 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 repair can range from $50 to $200, while labor costs can range from $100 to $300. Overall, the total cost of repairing a high idle speed issue on a 2018 GMC Sierra could be anywhere from $150 to $500. It's important to note that labor rates at auto repair shops can vary, so it's recommended to get a few quotes from different shops in your area to get a more accurate estimate.
Tech Notes for P0507 2018 GMC Sierra
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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