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April 5, 2017 Service bulletin

Some 2017 F-Super Duty and 2016-2017 F650/F750 vehicles equipped with 6.7L engine may exhibit an...

Ford technical service bulletin SSM 46510 for 2017 Ford F-250 SD, 2016-2017 Ford F-650 SD and 2016-2017 Ford F-750 SD.

Bulletin number
SSM 46510
Component
Fuel system, diesel
Summary
Some 2017 F-Super Duty and 2016-2017 F650/F750 vehicles equipped with 6.7L engine may exhibit an inaccurate diesel exhaust fluid (DEF) level indicator or warning message with or without an illuminated malfunction indicator lamp (MIL) and diagnostic trouble code (DTC) P203B. This concern may be due to intermittent loss of signal from the reductant level sensor that is integrated into the reductant tank. If the applicable pinpoint test in the powertrain control/emission diagnostic (PC/ED) or workshop manual (WSM) directs replacement of the integrated reductant level sensor, do not attempt any repairs at this time and release the vehicle. Engineering is currently investigating this concern, monitor OASIS for updates regarding latest information and diagnostic direction.

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