P0430 Ford F150: Understanding and Fixing Common Catalyst System Efficiency Issues

Are you experiencing a non-specific noise from the left front wheel during acceleration or a check engine light in your 2015 F-150 with 124,000 miles and a 3.5-liter EcoBoost engine? In this video, we will cover the diagnostic process for these concerns.

During the diagnostic drive, the mechanic attempted to replicate the noise and determined that the steering wheel was off-center. Various potential issues were considered, including the possibility of a vacuum leak in the four-wheel drive actuators. The mechanic also noted a sulfur-like smell after hard acceleration, indicating a potential catalytic converter issue. The diagnostic process also involved checking the ignition coils and conducting a thorough examination of the catalytic converter and spark plugs.

Following a detailed inspection, it was found that the catalytic converter had an efficiency code, and the active grille shutter also displayed a performance concern. The mechanic performed a manual command test on the grille shutter, which revealed that it was not functioning as intended. Upon further investigation, debris and obstruction were discovered in the grille shutter area, which was subsequently cleaned out to resolve the issue.

After clearing the codes and conducting an engine running self-test, it was determined that the grille shutter issue had been resolved. However, a catalytic converter replacement was recommended due to the identified failure. The mechanic also verified the condition of the spark plugs and purge valve, ensuring they were in good working order. Ultimately, the diagnostic process provided valuable insights into the vehicle’s issues, allowing for appropriate recommendations and solutions to be presented to the vehicle owner.

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What are the concerns with the 2015 F-150?

The two concerns are a non-specific noise from the left front wheel only during acceleration and the check engine light.

What was the technician’s process for diagnosing the issues?

The technician conducted a test drive to listen for the noise and check for any noticeable issues. They also used a scan tool to check for active faults related to the check engine light.

What did the technician find during the test drive?

The technician did not hear any noise from the left front wheel during the drive. However, they detected a sulfur smell after hard acceleration, indicating a potential issue with the catalytic converter.

What was the diagnosis for the check engine light?

The technician found a catalytic converter Bank two efficiency code and an active Grill shutter sensor minimum maximum stop performance code. They examined the spark plugs and purge valve, which appeared to be in good condition. They also cleaned out debris from the grill shutters and cleared the codes, determining that the issue with the grill shutters may have been resolved.

What was the technician’s final assessment and recommendations?

The technician concluded that the noise issue was not present during the test drive and they suggested investigating a TSB for the iwe noise. They resolved the Grill shutter sensor issue by cleaning out debris, and suggested replacing the lower shutters or actuator if the problem persists. They also recommended further inspection of the catalytic converter for potential failure.

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