P0507 GMC Code - Idle Speed High
Quick Answer
The P0507 diagnostic trouble code for GMC vehicles indicates that the idle speed of the engine is higher than normal. Common causes include Faulty idle air control valve, Vacuum leaks in the intake system, Dirty or clogged 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 GMC indicates Idle Speed High.
- Common causes
- Common causes include Faulty idle air control valve, Vacuum leaks in the intake system, Dirty or clogged 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 GMC Description
The P0507 diagnostic trouble code for GMC vehicles indicates that the idle speed of the engine is higher than normal. This means that the engine is idling at a faster rate than it should be when the vehicle is stationary. This can lead to a variety of performance issues, including decreased fuel efficiency, rough idling, and potential stalling when coming to a stop. The code is typically triggered when the idle air control system is not functioning properly, causing the engine to rev higher than necessary.
Common Causes of P0507 GMC
- Faulty idle air control valve
- Vacuum leaks in the intake system
- Dirty or clogged throttle body
- Issues with the mass airflow sensor
- Engine misfire or other mechanical issues
Symptoms of P0507 GMC
- High idle speed when the vehicle is stationary
- Engine revving on its own
- Rough idling or shaking when at a stop
- Decreased fuel efficiency
- Potential stalling when coming to a stop
How to Fix P0507 GMC
- Begin by performing a thorough inspection of the idle air control valve and clean or replace it if necessary.
- Check for any vacuum leaks in the intake system and repair or replace any damaged hoses.
- Clean the throttle body to remove any carbon buildup that may be causing the high idle speed.
- Inspect the mass airflow sensor for any dirt or debris and clean it if needed.
- If the issue persists, perform a full engine diagnostic to check for any misfires or other mechanical issues that may be causing the high idle speed.
Cost to Fix P0507 GMC
The typical repair costs for addressing a high idle speed issue like P0507 on a GMC vehicle can range from $100 to $500, depending on the specific cause of the problem and the parts that need to be replaced. Labor costs can vary, but most auto repair shops charge between $80 and $150 per hour for diagnostic and repair services. It's recommended to consult with a certified mechanic or dealership for a more accurate cost estimate based on your vehicle's make and model.
Tech Notes for P0507 GMC
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.
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GMC Throttle Body Cleaning and Idle Learning Procedure
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Information for Specific GMC Models
- P0507 2014 GMC Sierra — Idle Speed High
- P0507 2015 GMC Sierra — Idle Speed High
- P0507 2016 GMC Sierra — Idle Speed High
- P0507 2017 GMC Sierra — Idle Speed High
- P0507 2018 GMC Sierra — Idle Speed High
Frequently Asked Questions about P0507 GMC Code
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