Ford Expedition 2017–2020 — technical service bulletin

Bulletin 21N08 · NHTSA communication 10202720 · issued Oct 29, 2021

Technical service bulletin

communication type

Engine

component

2017–2020

model years

vehicle entries

Official summary

Certain 2017-2020 Model Year F-150, 2018-2020 Expedition, and 2018-2020 Navigator Vehicles Equipped with a 3.5L GTDI Engine PCM Reprogram Due to Engine Shudder; Owner Letter sent

Vehicles covered

2018 Ford Expedition
2019 Ford Expedition
2020 Ford Expedition
2017 Ford F-150
2018 Ford F-150
2019 Ford F-150
2020 Ford F-150
2018 Lincoln Navigator
2019 Lincoln Navigator
2020 Lincoln Navigator

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.