Ford Expedition 2013–2018 — technical service bulletin
Bulletin TSB 20-2013 · NHTSA communication 10170914 · issued Jan 20, 2020
Technical service bulletin
communication type
Wheels
component
2013–2018
model years
16
vehicle entries
Official summary
Some 2013-2018 F-150/Expedition/Navigator vehicles equipped with 4-wheel drive (4WD) may exhibit an intermittent grinding noise while driving in 2-wheel drive (2WD) mode most commonly on acceleration. This may be due to a loss of vacuum to the integrated wheel end (IWE) actuators and/or wear of the IWE components. To correct the condition, follow the Service Procedure steps to reprogram the transfer case control module (TCCM) and replace any worn vacuum and/or IWE components.
Vehicles covered
- 2013 Ford Expedition
- 2014 Ford Expedition
- 2015 Ford Expedition
- 2016 Ford Expedition
- 2017 Ford Expedition
- 2013 Ford F-150
- 2014 Ford F-150
- 2015 Ford F-150
- 2016 Ford F-150
- 2017 Ford F-150
- 2018 Ford F-150
- 2013 Lincoln Navigator
- 2014 Lincoln Navigator
- 2015 Lincoln Navigator
- 2016 Lincoln Navigator
- 2017 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.