Ford F-150 2017 — technical service bulletin
Bulletin SSM 46921 · NHTSA communication 10127414 · issued Nov 14, 2017
Technical service bulletin
communication type
Power Train
component
2017
model years
7
vehicle entries
Official summary
Some 2017 F-Super Duty vehicles with 6.7L diesel engines may exhibit a fuel knock type noise at idle with various cylinder contribution/balance DTCs and/or Fuel Injector Offset Learn DTCs. To resolve this issue please use the following procedure: 1) Make sure ECT1 and EOT are above 176Å?F (80Å?C). 2) Using the IDS or FJDS, run the Manual Injector Balance Test/Enhanced Power Balance Test under Toolbox, Powertrain, Power Balance. If the noise is gone after running the Enhanced Power Balance test, then clear the High Pressure Side Minimum Fuel Mass Adaptation tables for all cylinders, and the Cra
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.