Ford F-250 SD 2011–2014 — technical service bulletin
Bulletin SSM 48139 · NHTSA communication 10164598 · issued Aug 19, 2019
Technical service bulletin
communication type
Engine and Engine Cooling
component
2011–2014
model years
16
vehicle entries
Official summary
Some remanufactured 6.7L diesel engines recently installed in 2011-2014 F-Super Duty vehicles may exhibit a lack of power with engine oil temperature (EOT) exceeding 125Ã â C (257Ã â F) under loads. This may also be accompanied by REDUCED ENGINE POWER being displayed in the message center and the coolant temperature gauge indicating H . This symptom may be due to a missing metering cup plug in the upper oil pan causing reduced oil flow through the oil cooler. Remanufactured engines built on 1-Mar-2019 and through 13-May-2019 may be affected. If a vehicle exhibits this concern, use the Report a
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.