Some 2010 Ford Fusion and Mercury Milan vehicles equipped with a 3.0L engine and built on or before 12-7-2009 may exhibit rpm fluctuations during acceleration immediately following a cold engine startup.
A powertrain control module calibration update is available that also includes enhancements for diagnostic trouble code P061B.
Reprogram the PCM to the latest calibration using IDS release 65.06 and higher. This new calibration is not included in the VCM 2010.1 DVD. Calibration files may also be obtained at www.motorcraft.com.
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