P0507 Cadillac Code - Idle Speed High
Quick Answer
When the diagnostic trouble code P0507 appears on a Cadillac, it indicates that the idle speed of the vehicle is higher than normal. Common causes include Faulty idle air control valve, Dirty or malfunctioning throttle body, Vacuum leaks in the intake system. 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 Cadillac indicates Idle Speed High.
- Common causes
- Common causes include Faulty idle air control valve, Dirty or malfunctioning throttle body, Vacuum leaks in the intake system.
- 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 Cadillac Description
When the diagnostic trouble code P0507 appears on a Cadillac, it indicates that the idle speed of the vehicle is higher than normal. Idle speed refers to the rotational speed of the engine when the vehicle is not in motion. A high idle speed can lead to various issues, including reduced fuel efficiency, increased wear on engine components, and potential drivability problems. This code may be triggered by a malfunction in the idle air control system, throttle body, vacuum leaks, or issues with the engine control module (ECM).
Common Causes of P0507 Cadillac
- Faulty idle air control valve
- Dirty or malfunctioning throttle body
- Vacuum leaks in the intake system
- Issues with the ECM or engine sensors
- Carbon buildup in the intake manifold
Symptoms of P0507 Cadillac
- High idle speed when the vehicle is stationary
- Engine revving on its own without driver input
- Poor fuel economy
- Rough idling or shaking while the vehicle is stopped
- Check engine light illuminated on the dashboard
How to Fix P0507 Cadillac
- Perform a thorough inspection of the idle air control valve and clean or replace it if necessary.
- Clean the throttle body to remove any buildup of carbon or debris that may be causing the high idle speed.
- Check for and repair any vacuum leaks in the intake system.
- Scan the vehicle's ECM for any error codes and address any issues with engine sensors or the ECM itself.
- Reset the ECM and perform an idle relearn procedure to recalibrate the idle speed.
Cost to Fix P0507 Cadillac
The cost of repairing a high idle speed issue on a Cadillac can vary depending on the specific cause of the problem and the labor rates in your area. On average, you can expect to pay anywhere from $100 to $500 for parts and labor. Keep in mind that diagnostic time and labor rates can influence the final cost, so it's advisable to get a detailed estimate from a qualified mechanic.
Tech Notes for P0507 Cadillac
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.
Cadillac Throttle Body Cleaning and Idle Learning Procedure
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