Lincoln Aviator 2020 — technical service bulletin
Bulletin SSM 49590 · NHTSA communication 10188000 · issued Feb 17, 2021
Technical service bulletin
communication type
Equipment
component
2020
model years
1
vehicle entries
Official summary
Some 2020 Aviator vehicles equipped with all-wheel drive (AWD) built on or before 15-Aug-2019 may exhibit a rubbing/clicking/ticking noise while driving that increases with vehicle speed. This may be due to the engine mount vacuum control tube contacting the left front axle halfshaft. If the engine mount vacuum control tube is contacting the left front axle halfshaft, reposition as needed.
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.