Some 2013 Ford F-150 vehicles built on or before 9-18-2012 and equipped with a 3.5L gasoline turbocharged direct injection Ecoboost engine may exhibit an intermittent stumble and/or misfire on hard acceleration after an extended drive at highway speeds during high humid or damp conditions.

This could result in a steady or flashing MIL with DTCs P0300, P0304, P0305, P0306, primarily for misfire. P0430 may also be stored.

Ensure that all hard fault powertrain DTCs are addressed prior to performing this service procedure.

1. Check for DTC P0430. If stored, replace the left-side catalytic converter. If not, proceed to Step 2.

2. Install a new Charge Air Cooler (CAC). Refer to section 303-12 in the workshop manual.

P/N and Part

DL3Z-6K775-B...............Charge air cooler

W7AA281-S300.............Push pin (2 required)

BL3Z-5E212-E................Catalytic converter assembly

W520514-S440..............Nuts (2 required)

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