Truck Jerk
Some 2012-2013 Ford F-150 vehicles equipped with the 5.0L engine and built on or before 12-4-2012 may exhibit a buck/jerk under light throttle during parking lot maneuvers for the first 60 seconds after startup with engine coolant temperature at approximately 100 degrees Fahrenheit.
Reprogram the PCM to the latest calibration using IDS release 83.01 and higher.
Files are available at www.motorcraft.com.