P0506 Ford F150: Comprehensive Guide to Diagnosing and Fixing the Issue

If you own a Ford F150 FX4 and are experiencing issues such as the P0506 trouble code, rough idling, or stalling out in gear, it could be due to a dirty throttle body. In this guide, we’ll walk you through the process of cleaning the throttle body to address these problems.

Getting Started

First, you’ll need to locate the throttle body and remove it. There’s typically one bolt for the air intake and four bolts to secure the throttle body itself. You’ll also need to disconnect the mass airflow sensor and any associated vacuum lines and plugs.

Cleaning the Throttle Body

Once you have the throttle body removed, you can begin the cleaning process. Start by using a carb cleaner and paper towels to remove any built-up grime and dirt from the throttle body. Pay special attention to the throttle plate and the surrounding areas, as these can often accumulate the most residue.

It’s essential to ensure that the throttle body is thoroughly cleaned, as any remaining dirt or grime could contribute to ongoing issues with your vehicle’s performance.

Reinstalling the Throttle Body

After thoroughly cleaning the throttle body, it’s time to reinstall it. Make sure to clean the mating surfaces and the surrounding area, ensuring everything is free from debris. Once the throttle body is securely reinstalled, you can reconnect any plugs, lines, and sensors that were removed during the initial disassembly.

Testing the Results

With the throttle body cleaned and reinstalled, start the vehicle and observe the idle behavior. Check to see if the previous issues such as rough idling or stalling in gear have been resolved. If all goes well, you should notice a significant improvement in the vehicle’s performance.


Cleaning your Ford F150 FX4’s throttle body can be an effective way to address common issues such as rough idling and stalling out. By following these steps, you can save on costly repairs and keep your vehicle running smoothly. Remember to perform regular maintenance to prevent future build-up and keep your throttle body in optimal condition.

Thank you for reading our guide, and we hope it helps you resolve any throttle body-related issues with your Ford F150 FX4!

What is the problem with the Ford f150 fx4 off?

The problem is with the P0506 trouble code, indicating a dirty throttle body leading to unsolvable stalls out in gear.

How do you clean the throttle body?

To clean the throttle body, you will need carb cleaner and paper towels. Remove the throttle body, spray it with carb cleaner, wipe off the dirt and grime, and repeat the process until it is clean. Make sure to also clean the mating surfaces and the side of the throttle plate.

What should be done after cleaning the throttle body?

After cleaning the throttle body, ensure that the mating surfaces are clean and shiny, and then reassemble the throttle body back onto the vehicle. Make sure the air box, vacuum line, and plugs are properly reinstalled. Start the vehicle to see if the problem has been resolved.

What are the indicators that the throttle body is clean?

A clean throttle body will have a shiny, silver appearance on the inside. The idle of the vehicle should improve, and it should no longer stall out in gear.

Any additional tips?

It is important to clean the throttle body mating surfaces and ensure they are free from crud to prevent intake leaks. It is also recommended to clean the side of the throttle plate and the outside of the throttle body for thorough maintenance.

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