“P1518 Ford F150 Troubleshooting: Valve Location, Replacement, and Ensuring Your Fix”

Are you experiencing bad gas mileage in your car? It could be due to a faulty butterfly valve for the IM RC. In this guide, we will show you how to locate and replace the butterfly valve in a 2000 f150 4.2 liter v6.

If you noticed a code P1518 on your OBD2 sensor, it’s a clear indication of an issue with the IMR seat. Don’t worry, we’ve got you covered. Here’s a step-by-step process to tackle this problem.

Locating the Butterfly Valve

First, you’ll need a flashlight to locate the butterfly valve as it is positioned at the back of the engine. It may be a bit tricky to access, but with some persistence, it can be found.

The control rod connected to the butterfly valve may need replacement. You can easily find a pack of replacement bushings at your local auto parts store. Once you have the replacement part, it’s time to get your hands dirty.

Replacing the Butterfly Valve

Using the aid of a mirror, pinpoint the exact location of the old, worn-out bushing that needs to be replaced. With the right tools and a bit of patience, you can successfully replace the worn bushing and reconnect the control rod.

If you’re unsure about the fault codes indicated by your car, a Bluetooth OBD2 sensor can come to your rescue. It’s a cost-effective tool that provides valuable insights into your vehicle’s performance.

Testing Your Fix

After replacing the butterfly valve and reconnecting the control rod, fire up your vehicle to see the results. You can reset the error codes using the torque app and observe the difference in the idle. A quieter idle and improved fuel mileage will indicate a successful fix.


By following these steps, you can resolve issues related to the butterfly valve for the IM RC in your vehicle. Say goodbye to bad gas mileage and engine troubles, and enjoy a smoother driving experience. If you found this guide helpful, don’t forget to share it with others who may be facing similar car troubles.

Where is the butterfly valve for the IM RC located?

The butterfly valve for the IM RC is located at the back of the engine. A flashlight is needed to locate it, and it may require climbing into the engine area.

What is the error code P1518 related to?

Error code P1518 is related to the IMR seat, which can cause issues with idle and fuel mileage.

How to reconnect the control rod for the butterfly valve?

When reconnecting the control rod for the butterfly valve, it’s important to rotate the motor to a completely vertical position. Using a screwdriver and extra tools like string and masking tape can also be helpful in the process.

What is the Bluetooth OBD2 sensor used for?

The Bluetooth OBD2 sensor can be used with a free app called Torque Light on Android devices to identify fault codes in modern vehicles.

What are the benefits of reconnecting the IM RC after fixing issues?

Reconnecting the IM RC can improve idle, reduce engine noise, and address issues related to the butterfly valve’s functionality, resulting in better fuel mileage.

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